EXHIBIT 4G

                  WAIVER AND AMENDMENT AGREEMENT

      This Waiver and Amendment Agreement (the  Waiver
Agreement) dated as of November 20, 2001 is made and entered
into by and among First Union National Bank, a national banking
association, with an office at Broad and Walnut Streets,
Philadelphia, Pennsylvania 19109 (the Bank), Selas Corporation
of America, a Pennsylvania business corporation with offices
located at 2034 Limekiln Pike, Dresher, Pennsylvania 19025  (the
Borrower), Selas SAS (formerly named Selas S.A.), a
corporation organized under the laws of France (Selas SAS),
CFR-CECF Fofumi Ripoche, a corporation organized under the laws
of France (CFR); and together with Selas SAS, the European
Subsidiaries), Deuer Manufacturing, Inc., an Ohio business
corporation with offices located at 2985 Springboro West,
Dayton, Ohio 45439 (Deuer), Resistance Technology, Inc., a
Minnesota business corporation with offices located at 1260 Red
Fox Road, Arden Hills, Minnesota 55112 (RTI), RTI Export,
Inc., a Barbados corporation with offices located at c/o  2034
Limekiln Pike, Dresher, Pennsylvania 19025 (RTIE), and RTI
Electronics, Inc., a Delaware corporation with offices located
at 1800 Via Burton Street, Anaheim, California 92806 (RTI
Electronics; and together with Deuer, RTI and RTIE, the
Guarantors).

                             BACKGROUND

      A.   The Borrower,  the Bank and the Guarantors entered into
that certain  Amended and Restated  Credit  Agreement  dated as of
July 31,  1998,  as amended by an  Amendment  dated as of June 30,
1999,  a Second  Amendment  dated  as of July 7,  2000 and a Third
Amendment  dated as of January 19, 2001 (as  amended,  the "Credit
Agreement"),  pursuant to which the Bank made  certain  term loans
to the Borrower  described  therein (the Term  Loans) and agreed
to make available to the Borrower a revolving  credit  facility in
the  principal  amount  of  Four  Million  Five  Hundred  Thousand
Dollars  ($4,500,000)  (the  Revolving  Credit).  The Guarantors
jointly  and  severally  guaranteed  and  became  surety  for  all
loans, advances,  debts, liabilities,  obligations,  covenants and
duties  of the  Borrower  to the Bank  pursuant  to the  following
agreements (collectively,  the Borrower Surety Agreements):  (i)
that certain  Guaranty and Suretyship  Agreement of Deuer dated as
of October 20,  1993 and amended as of July 31, 1998 (as  amended,
the Deuer  Surety  Agreement),  (ii) that  certain  Guaranty and
Suretyship  Agreement  of RTI  dated as of  October  20,  1993 and
amended  as  of  July  31,  1998  (as  amended,  the  RTI  Surety
Agreement),   (iii)  that   certain   Guaranty   and   Suretyship
Agreement  of RTIE dated as of October  20, 1993 and amended as of
July 31,  1998 (as  amended,  the RTIE  Surety  Agreement),  and
(iv)  that  certain  Guaranty  and  Suretyship  Agreement  of  RTI
Electronics  dated as of February  20,  1997,  as amended July 31,
1998 (as amended, the RTI Electronics Surety Agreement).

      B.   The  Term  Loans  are   evidenced   by  the   following
promissory  notes  executed by the  Borrower in favor of the Bank,
which  are  outstanding  as of the date  hereof:  (i) Term  Note C
dated as of February  21, 1997 in the  original  principal  amount
of  Three  Million  Five  Hundred  Thousand  Dollars  ($3,500,000)
(Term  Note C),  (ii)  Term Note D dated as of June 30,  1999 in
the original  principal  amount of Nine Hundred  Thousand  Dollars
($900,000)  (Term  Note  D),  (iii)  Term  Note  E  dated  as of
January 19, 2001 in the original  principal  amount of Two Million
Dollars  ($2,000,000)  (Term Note E), and (iv) Term Note F dated
as of January 19,  2001 in the  original  principal  amount of One
Million  Seven  Hundred  Thousand   Singapore  Dollars  (Singapore
$1,700,000)  (Term Note F; and  together  with Term Note C, Term
Note D and Term Note E, the Term  Notes).  The Revolving  Credit
facility  is  evidenced  by  an  Amended  and  Restated  Revolving
Credit Note dated as of January 19, 2001 in the  principal  amount
of  Four  Million  Five  Hundred  Thousand  Dollars   ($4,500,000)
between  the  Borrower  and  the  Bank  (the   Revolving   Credit
Note).   The  Term  Notes  and  the  Revolving  Credit  Note  are
collectively referred to hereinafter as the Notes.

      C.   First  Union  National  Bank,  London  Branch  (London
Branch)  and Selas SAS, a  subsidiary  of the  Borrower,  entered
into that  certain  Agreement  dated as of  February  2, 2001 (the
Selas  SAS  Facility  Agreement)  pursuant  to  which  the  Bank
provided to Selas SAS a  discretionary  line of credit facility in
the aggregate  amount of Sixteen  Million Euros  (E16,000,000)  on
an on demand  basis,  expiring on April 30, 2001 (the Selas SAS
Facility)  for the purposes of providing:  discretionary  advance
payment  guarantees  on behalf of Selas SAS (the APG  Facility);
and  a  discretionary   overdraft  facility  for  general  working
capital  purposes  with a sub-limit  amount of Two  Million  Euros
(E2,000,000)    that   was   later   increased   (the   Overdraft
Facility).  The Banks  London  Branch and Selas SAS also entered
into certain term loan  agreements  (collectively,  the Selas SAS
Term Loan  Agreements),  as follows:  an agreement dated February
26,  1998  pursuant  to which  the Bank  made a term loan to Selas
SAS in the original  principal  amount of Fifteen  Million  French
Francs   (FF   15,000,000)   (the   Selas   SAS  1998  Term  Loan
Agreement);  and an  agreement  dated  January  2000  pursuant to
which  the  Bank  made a term  loan to Selas  SAS in the  original
principal  amount of One Million  Seven  Hundred  and  Fifty-Three
Thousand   One   Hundred   and   Fifty-Eight   and  30/100   Euros
(E1,753,158.30)  (the Selas SAS 2000 Term Loan  Agreement).  The
Borrower  and  Guarantors  jointly and  severally  guaranteed  and
became  surety  for  all  loans,  advances,   debts,  liabilities,
obligations,  covenants  and  duties  of  Selas  SAS to the  Bank,
pursuant  to the  following  agreements  (the  Selas  SAS  Surety
Agreements):   (i)  that   certain   Unconditional   Guaranty  of
Borrower   dated  as  of   January   10,   2000   (the   Borrower
Guaranty),  (ii) that  certain  Unconditional  Guaranty  of Deuer
dated as of January 10, 2000 (the  Deuer  Guaranty),  (iii) that
certain  Unconditional  Guaranty  of RTI dated as of  January  10,
2000  (the  RTI  Guaranty),   (iv)  that  certain  Unconditional
Guaranty  of  RTIE  dated  as  of  January  10,  2000  (the  RTIE
Guaranty),  and (v) that  certain  Unconditional  Guaranty of RTI
Electronics  dated as of January  10,  2000 (the RTI  Electronics
Guaranty).

      D.   As security for any and all  indebtedness,  liabilities
and  obligations  of the  Borrower to the Bank,  then  existing or
thereafter  arising,  the  Borrower:  (i)  granted  to the  Bank a
security  interest  in and  lien  on:  (a)  all of the  Borrowers
assets,  then owned or  thereafter  acquired,  including,  without
limitation,  all accounts,  contract rights, inventory,  fixtures,
machinery,   equipment,   general  intangibles,  and  (b)  all  of
Borrowers   rights  under  a  certain  contract  with  Production
Machinery  Corporation  in  Talcahuano,  Chile for the sale of and
the  proceeds  of a  Five  Million  Twenty-Five  Thousand  Dollars
($5,025,000)  documentary  letter  of  credit  issued by Bank One,
Columbus,  Ohio pursuant to that certain Security  Agreement dated
as of October  20,  1993,  as amended  July 31,  1998  between the
Borrower  and  the  Bank  (as  amended,   the  Borrower  Security
Agreement);   (ii)  assigned,  pledged  and  granted  to  Bank  a
security  interest in all of the issued and  outstanding  stock of
Deuer,  RTI,  RTIE and RTI  Electronics  pursuant to that  certain
Second  Amended and  Restated  Pledge  Agreement  dated as of July
31, 1998 (the Borrower Pledge  Agreement);  and (iii) granted to
the Bank a first  mortgage  lien on certain  real  property of the
Borrower  and  improvements  thereon  located  in  Dresher,  Upper
Dublin   Township,    Montgomery    County,    Pennsylvania   (the
Pennsylvania  Property)  pursuant to that certain First Mortgage
and Security  Agreement  dated as of October 20, 1993,  as amended
on July 21, 1995,  February  20,  1997,  July 31, 1998 and January
10,  2000  (as  amended,   the  Borrower  Mortgage  and  Security
Agreement).

      E.   As security for any and all  indebtedness,  liabilities
and   obligations   of  Deuer  to  the  Bank,   then  existing  or
thereafter  arising,  Deuer:  (i)  granted  to the Bank a security
interest  in and  lien on all of  Deuers  assets,  then  owned or
thereafter   acquired,    including,   without   limitation,   all
accounts,   contract  rights,  inventory,   fixtures,   machinery,
equipment,  general intangibles  pursuant to that certain Security
Agreement  dated as of October 20, 1993,  as amended July 31, 1998
between  Deuer  and the  Bank (as  amended,  the  Deuer  Security
Agreement);  and (ii) granted to the Bank a first  mortgage  lien
on  certain  real  property  of  Deuer  and  improvements  thereon
located   in   Moraine,   Montgomery   County,   Ohio  (the  Ohio
Property)  pursuant to that certain  First  Mortgage and Security
Agreement  dated as of  October  20,  1993,  as  amended  July 21,
1995,  February 20, 1997,  July 31, 1998, and January 10, 2000 (as
amended, the Deuer Mortgage and Security Agreement).

      F.   As security for any and all  indebtedness,  liabilities
and  obligations  of RTI to the Bank,  then existing or thereafter
arising,  RTI: (i) granted to the Bank a security  interest in and
lien on all of RTIs assets,  then owned or  thereafter  acquired,
including,  without  limitation,  all accounts,  contract  rights,
inventory,  fixtures,  machinery,  equipment,  general intangibles
pursuant to that certain  Security  Agreement  dated as of October
20,  1993,  as amended  July 31, 1998 between RTI and the Bank (as
amended, the RTI Security  Agreement);  (ii) granted to the Bank
a  security   interest   in  and  lien  on  certain   patents  and
trademarks  and  other  intellectual  property  pursuant  to  that
certain  Patent and  Trademark  Security  dated as of October  20,
1993,  as  amended  July 31,  1998  between  RTI and the Bank (the
RTI Patent and Trademark Security Agreement);  and (iii) granted
to the Bank a first  mortgage  lien on certain  real  property  of
RTI and improvements  thereon located in Ramsey County,  Minnesota
(the  Minnesota  Property)  pursuant to that  certain  Mortgage,
Security  Agreement and Fixture  Financing  Statement  dated as of
June 30, 1999, as amended  January 10, 2000 (as amended,  the RTI
Mortgage and Security Agreement).

      G.   As security for any and all  indebtedness,  liabilities
and  obligations of RTIE to the Bank,  then existing or thereafter
arising,  RTIE  granted to the Bank a security  interest in all of
RTIEs  assets,  then  owned or  thereafter  acquired,  including,
without  limitation,  all accounts,  contract  rights,  inventory,
fixtures,  machinery,  equipment,  general intangibles pursuant to
that certain  Security  Agreement dated as of October 20, 1993, as
amended July 31, 1998  between RTIE and the Bank (as amended,  the
RTIE Security Agreement).

      H.   As security for any and all  indebtedness,  liabilities
and  obligations of RTI  Electronics to the Bank, then existing or
thereafter  arising,  RTI Electronics  granted the Bank a security
interest  in  all  of  RTI  Electronics  assets,  then  owned  or
thereafter   acquired,    including,   without   limitation,   all
accounts,   contract  rights,  inventory,   fixtures,   machinery,
equipment,  general intangibles  pursuant to that certain Security
Agreement  dated as of October 20, 1993,  as amended  February 20,
1997 and July 31, 1998  between RTI  Electronics  and the Bank (as
amended, the RTI Electronics Security Agreement).

      I.   The Credit  Agreement,  the Notes,  the Borrower Surety
Agreements,  the Selas SAS Facility Agreement,  the Selas SAS Term
Loan  Agreements,  the Selas SAS Surety  Agreements,  the Borrower
Security  Agreement,  the Borrower Pledge Agreement,  the Borrower
Mortgage and Security  Agreement,  the Deuer  Security  Agreement,
the  Deuer  Mortgage  and  Security  Agreement,  the RTI  Security
Agreement,  the RTI Patent and Trademark Security  Agreement,  the
RTI   Mortgage   and  Security   Agreement,   the  RTIE   Security
Agreement,  the RTI Electronics Security Agreement,  together with
the various  agreements,  instruments and other documents executed
in  connection  therewith  and all  amendments  and  modifications
thereto,  now  or  hereafter  in  effect,  shall  be  referred  to
hereinafter  as the Existing  Loan  Documents.  All  capitalized
terms not otherwise  defined  shall have the meanings  ascribed to
them in the Existing Loan Documents, as amended hereby.

      J.   The  Borrower  has  informed  the  Bank  that,  in  the
absence of the waiver  provided  herein,  Events of Default  would
occur  under the Credit  Agreement  as a result of the  Borrowers
failure to maintain  the  minimum  Consolidated  Tangible  Capital
Funds  amount and the Fixed Charge  Coverage  Ratio as of December
31,  2001 as  required  under the Credit  Agreement,  respectively
(the "Financial Covenant Defaults").

      K.   The Borrower  has advised Bank that it is  developing a
plan for  improving  its  European  operations  and it  intends to
sell its subsidiary, Selas SAS.

      L.   The  Borrower,   the   Guarantors,   and  the  European
Subsidiaries   have   requested   that  the  Bank  (i)  waive  the
Financial   Covenant  Defaults  and  (ii)  provide  a  new  credit
facility  pursuant to which the London  Branch will issue  certain
advance  payment  guarantees;  and the Bank is willing to do so on
the terms and conditions set forth herein.

      NOW, THEREFORE,  in consideration of the promises and mutual
agreements  herein contained and  incorporating  the Background by
reference  herein,  the Bank, the Borrower,  the  Guarantors,  and
the European  Subsidiaries  intending to be legally  bound hereby,
agree as follows:

                   ARTICLE I - ACKNOWLEDGMENTS

      1.1  Acknowledgment  of  Joint  and  Several   Liability,
Maturity Dates and Amounts of Notes.

           1.1.1The Borrower and the  Guarantors  acknowledge  and
agree  that:  (i) they are  jointly  and  severally  indebted  and
liable  to  the  Bank  in  respect  of the  outstanding  principal
amount of the Notes,  together  with  accrued and unpaid  interest
thereon,  and all other  Obligations;  (ii) the Notes  mature  and
are due and payable in full on the  respective  maturity dates set
forth  below  next to each such  Note;  and (iii) the  outstanding
principal  amount of each Note as of  November  13,  2001,  is set
forth below next to each such Note:

      Promissory Notes         Maturity Date   Outstanding
                                          Principal Amount

      Term Note C              02/01/2002      $        175,000.19
(US Dollars)

      Term Note D              07/01/2004      $        690,000.00
(US Dollars)

      Term Note E              02/01/2006      $ 1,700,000.03  (US
Dollars)

      Term Note F              02/01/2006      S$     1,202,789.00
                                          (Singapore Dollars)

      Revolving Credit Note    01/31/2002      $ 2,540,137.09  (US
Dollars)

           1.1.2Selas  SAS,  the   Borrower  and  the   Guarantors
acknowledge  and agree that:  (i) they are  jointly and  severally
indebted  and  liable to the Bank in respect of the Selas SAS Term
Loan  Agreements,  the  Overdraft  Facility and all other  amounts
outstanding  under  the  Selas SAS  Facility  Agreement,  together
with  accrued  and  unpaid   interest   thereon,   and  all  other
Guaranteed  Obligations  (as such term is defined in the Selas SAS
Surety  Agreements);  (ii)  the  Selas  SAS Term  Loan  Agreements
mature  and  are  due and  payable  in  full,  together  with  all
interest  accrued  thereon,  on the respective  maturity dates set
forth below;  (iii) the  Overdraft  Facility and all other amounts
outstanding  under the Selas SAS Facility  Agreement are on an on
demand  basis and the Bank may make  demand  therefor at any time
and for any reason in its sole and absolute  discretion;  and (iv)
as of November 13, 2001, the outstanding  principal  amounts owing
to the Bank in respect of the Selas SAS Term Loan  Agreements  and
the  Overdraft  Facility  are set  forth  below  next to each such
agreement or facility:

                                    Maturity        Outstanding
      Obligation                    Date/Demand   Principal Amount

      Selas SAS 1998 Term Loan Agreement          02/27/2003  FF
4,500,000.00 (French Francs)

      Selas SAS 2000 Term Loan Agreement          01/12/2005  E
                                    1,139,552.93 (Euros)

      Overdraft Facility            On demand     E   5,976,854.11
                                               (Euros)

           1.1.3     The  outstanding  principal  amounts  of  the
Term Notes,  the  Revolving  Credit Note,  the Selas SAS Term Loan
Agreements,   the  APG  Facility,  the  Overdraft  Facility,  plus
accrued and unpaid  interest  thereon,  all other sums  payable by
the Borrowers,  the Guarantors  and the European  Subsidiaries  to
the  Bank,   whether   under  the  Existing   Loan   Documents  or
otherwise,  together  with any other  Guaranteed  Obligations  (as
such term is used in each of the Selas SAS Surety  Agreements  and
the  European   Subsidiaries  Surety  Agreements)  and  any  other
Obligations   (as  such  term  is  used  in  the   Existing   Loan
Documents,   as  amended  hereby)  are  collectively  referred  to
herein as the Obligations.

      1.2  Acknowledgment of Loan Documents;  Financial  Covenant
Defaults;  Loan  Documents;  Waiver  of  Defenses.  The  Borrower,
the Guarantors and the European  Subsidiaries  hereby  acknowledge
and agree that:  (i) the Loan  Documents  to which each is a party
are  valid,   binding  and  enforceable  against  them,  in  every
respect,  and all of the terms and conditions  thereof are binding
upon them;  (ii) the Financial  Covenant  Defaults are material in
nature;  (iii) the Selas SAS Facility is a discretionary  facility
that  expired  on April  30,  2001;  the Bank had no duty to issue
any advance payment  guarantees  thereunder at any time, except in
its sole  discretion;  and following such expiration  date,  Selas
SAS had no  right to  request  the  issuance  of  advance  payment
guarantees  under  the  Selas  SAS  Facility;  (iv)  the  Bank may
demand  any  and all  amounts  outstanding  under  the  Selas  SAS
Facility  at any time and for any reason in its sole and  absolute
discretion;  (v) as a result of the Financial  Covenant  Defaults,
in the absence of the waiver  provided  herein,  the Bank would be
entitled  immediately,  and without  further notice or declaration
to the  Borrower,  the  Guarantors,  or the European  Subsidiaries
not to make any  further  advances  or issue any  Advance  Payment
Guaranty   (as   hereinafter    defined),    to   accelerate   the
Obligations,  and to exercise  its rights and  remedies  under the
Loan  Documents  and  applicable  law; (vi) to the extent that any
of the  Loan  Documents  require  notification  by the Bank to the
Borrower,  the  Guarantors,  or the European  Subsidiaries  of the
existence  of a default  or provide  an  opportunity  to cure such
default,  such  notice and period for cure are hereby  waived with
respect to the Financial  Covenant  Defaults by the Borrower,  the
Guarantors,  and/or the  European  Subsidiaries;  and (vii) to the
extent  that  the  Borrower,   any  Guarantor,   or  any  European
Subsidiary has any defenses,  setoffs,  claims,  or  counterclaims
to  repayment  of  the  Obligations  or  against  the  Bank,  such
defenses, setoffs, claims, and counterclaims are hereby waived.

      1.3  Acknowledgment  of Liens and  Priority.  The  Borrower,
the  Guarantors,  and the European  Subsidiaries  acknowledge  and
agree that  pursuant to the Loan  Documents,  the Bank holds first
priority,  perfected  security  interests in and liens upon all of
the Borrower's  and  Guarantors  assets,  wherever  located,  now
owned or hereafter  acquired,  and as more specifically  described
in the Loan  Documents,  and a first  priority  mortgage lien upon
and security  interest  in: (i) the  Pennsylvania  Property,  (ii)
the   Ohio   Property,    and   (iii)   the   Minnesota   Property
(collectively "Bank's Mortgages, Liens and Security Interests").

      1.4  Reaffirmation  of  Mortgages,  Security  Documents and
Security  Interests.  All of the  Borrower's  and the  Guarantors
respective   assets  pledged,   assigned,   conveyed,   mortgaged,
hypothecated  or  transferred  to the  Bank  pursuant  to the Loan
Documents  including,   without  limitation,   accounts,  accounts
receivable,    inventory,    equipment,    general    intangibles,
contracts,  contract  rights,  instruments,   letters  of  credit,
deposits,  deposit  accounts,  documents  of title,  and all other
personal property,  together with the Pennsylvania  Property,  the
Minnesota  Property  and  the  Ohio  Property  (collectively,  the
"Collateral")  constitute  security  for  all of  the  Obligations
(including,  without  limitation,  such Obligations  arising under
or in respect of the  Borrower  Surety  Agreements,  the Selas SAS
Surety Agreements,  the European  Subsidiaries  Surety Agreements,
the  Advance  Payment  Guarantees,  the Waiver  Documents  and the
other Loan  Documents).  The  Borrower and the  Guarantors  hereby
grant to the Bank and  reaffirm  their prior grant and  conveyance
to the Bank of a continuing first priority  security  interest in,
lien on and charge  against all of the  Collateral.  The  Borrower
and  each  Guarantor   hereby   acknowledge  and  agree  that  the
Borrower Security  Agreement,  the Borrower Pledge Agreement,  the
Borrower  Mortgage  and  Security  Agreement,  the Deuer  Security
Agreement,  the Deuer  Mortgage  and Security  Agreement,  the RTI
Security   Agreement,   the  RTI  Patent  and  Trademark  Security
Agreement,  the RTI  Mortgage  and  Security  Agreement,  the RTIE
Security Agreement,  the RTI Electronics  Security Agreement,  and
any  other  security  agreements  are  ratified,   reaffirmed  and
confirmed  in all  respects,  shall  continue  in full  force  and
effect,  and  are  valid,  binding  and  enforceable  against  the
parties  thereto  as  if  executed  as of  the  date  hereof.  The
Borrower,  the Guarantors,  and the European Subsidiaries agree to
execute  and  deliver  to the Bank such  additional  documentation
deemed  necessary  or  appropriate  by the  Bank,  in its sole and
absolute  discretion,  to achieve the  purpose of this  section of
this Waiver Agreement.

      1.5  Reaffirmation of  Representations  and Warranties.  The
Borrower,  the Guarantors,  and the European  Subsidiaries  hereby
reaffirm their  respective  representations  and warranties in the
Loan  Documents,  which  representations  and  warranties are true
and  correct  as of the  date  hereof,  and  each and all of which
shall   survive  the   execution   and  delivery  of  this  Waiver
Agreement.

      1.6  Reaffirmation  of Guaranties.  In  consideration of the
undertakings  of the Bank  pursuant to this Waiver  Agreement  and
the other Loan Documents,  the Borrower and each Guarantor  hereby
reaffirm  the  Borrower  Surety  Agreements,  the Selas SAS Surety
Agreements,  the other Loan Documents and all of their  respective
obligations  thereunder.  The Borrower and each  Guarantor  hereby
consent  to  the  execution  and  delivery  by the  Borrower,  the
Guarantors,   and  the  European   Subsidiaries   of  this  Waiver
Agreement,   the  other  Waiver   Documents  and  the  other  Loan
Documents and all other  documents and  instruments to be executed
pursuant  hereto  or in  connection  herewith.  The  Borrower  and
each  Guarantor  hereby  waives  any right it may have to  contest
the   validity   or   enforceability   of  the   Borrower   Surety
Agreements,   Selas  SAS  Surety  Agreements  or  any  other  Loan
Document,  for  any  reason  whatsoever.   The  Guarantors  hereby
acknowledge and agree that the term  Obligations,  as defined in
their  respective  Borrower Surety  Agreements  includes,  without
limitation,  all of the obligations,  now or hereafter arising, of
Borrower  to the Bank,  whether  under the Credit  Agreement,  the
other Loan  Documents,  as amended,  or  otherwise.  The  Borrower
and each  Guarantor  hereby  acknowledge  and agree  that the term
Guaranteed  Obligations,  as defined in their  respective  Selas
SAS Surety Agreements  includes,  without  limitation,  all of the
obligations,  now or hereafter arising,  of Selas SAS to the Bank,
whether  under the Selas SAS Term Loan  Agreements,  the Selas SAS
Facility   Agreement,   any  document  or  agreement  executed  in
connection  with the Advance  Payment  Guarantees  that may now or
hereafter  be  issued  by the  Bank on  behalf  of Selas  SAS,  or
otherwise.  The Borrower  and each  Guarantor  hereby  acknowledge
and agree that the Borrower  Surety  Agreements  and the Selas SAS
Surety Agreements,  and any other suretyship  agreements  executed
by them in  favor  of the Bank or its  affiliates,  are  ratified,
reaffirmed  and confirmed in all respects,  shall continue in full
force and effect, and are valid,  binding and enforceable  against
the  parties  thereto as if executed  as of the date  hereof.  The
Borrower,  the Guarantors,  and the European Subsidiaries agree to
execute  and  deliver  to the Bank such  additional  documentation
deemed  necessary  or  appropriate  by the  Bank,  in its sole and
absolute  discretion,  to achieve the  purpose of this  section of
this Waiver Agreement.

      1.7  Bank  Has  No   Obligation   to  Extend   Waiver.   The
Borrower,  the Guarantors,  and the European  Subsidiaries  hereby
acknowledge  and  agree  that the Bank  shall  have no  actual  or
implied  duty or  obligation  to  extend  the  waiver  granted  to
Borrower  herein  beyond  the  waiver  of the  Financial  Covenant
Defaults as of December  31,  2001,  and the  determination  as to
any other or further  waivers  shall only be made by the Bank,  in
the Bank's sole and absolute discretion.


      1.8  Bank  Has No  Obligation  to  Issue  Further  Advance
Payment  Guarantees.  The Borrower,  the Guarantors,  the European
Subsidiaries   hereby   acknowledge   and  agree  that  except  as
provided  herein,  Bank  shall  have no duty to issue any  advance
payment  guarantees  to  or  for  the  benefit  of  Borrower,  the
Guarantors,   and/or  the   European   Subsidiaries,   or  provide
overdraft   financing   for  Borrower,   Guarantors,   and/or  the
European Subsidiaries.

         ARTICLE II - WAIVER OF FINANCIAL COVENANT DEFAULTS

      2.1  Waiver  of  Financial  Covenant  Defaults.  Subject  to
the  provisions  hereof,  the Bank  hereby  waives  the  Financial
Covenant  Defaults.  Notwithstanding  the  foregoing,  the  Banks
waiver of the Financial  Covenant  Defaults,  or any communication
between the Bank,  the  Borrower,  the  Guarantors,  the  European
Subsidiaries,  or  each  of  their  respective  officers,  agents,
employees or  representatives,  shall not be deemed to  constitute
a waiver  of (i) any  default  or Event of  Default,  whether  now
existing or hereafter  arising,  under the Loan  Documents,  other
than  the   Financial   Covenant   Defaults;   (ii)  the   ongoing
obligation  of the  Borrower,  the  Guarantors  and  the  European
Subsidiaries  to comply  with the Credit  Agreement  and the other
Loan  Documents  as  amended  hereby;   or  (iii)  any  rights  or
remedies   which  the  Bank  has   against   the   Borrower,   the
Guarantors,   or  the   European   Subsidiaries   under  the  Loan
Documents  and/or  applicable  law,  with  respect  to  Events  of
Default,  other than rights and  remedies  which  directly  result
from  the  occurrence  and  existence  of the  Financial  Covenant
Defaults.  The  Bank  hereby  reserves  and  preserves  all of its
rights and remedies  against the  Borrower,  the  Guarantors,  and
the   European   Subsidiaries   under  the  Loan   Documents   and
applicable  law,  other  than  the  right to  declare  an Event of
Default  or  exercise  remedies  based  upon  the  occurrence  and
existence of the Financial Covenant Defaults.

            ARTICLE III - AMENDMENTS TO LOAN DOCUMENTS

      3.1  Amendment  of the  Definition  of Loan  Documents.  The
following  definitions  in the Credit  Agreement is hereby amended
and restated, as follows:

      Revolving  Credit  Termination  Date is hereby  amended to
      mean  the  earlier of (i)  February  28, 2002 (as such date
      may be  extended  from  time  to  time  in  accordance  with
      Section 2.8 hereof) or (ii) the date on which the  Revolving
      Credit  Commitment  is  terminated  pursuant  to Section 9.2
      hereof.

      3.2  New  Definition.  The  following  new defined terms are
hereby added to Section 1.1 of the Credit  Agreement  (and if such
terms  are  defined  elsewhere  in  the  Credit  Agreement,   such
defined  terms are deemed to be amended and  restated and replaced
with the definitions set forth below):

      European  Subsidiaries  shall  have the  meaning  given to
      such term in the Waiver Agreement.

      Loan  Documents means the Existing Loan Documents (as such
      term  is  used  in  the   Waiver   Agreement),   the  Waiver
      Agreement,  the  Waiver  Documents,  and all  documents  and
      agreements  executed  in  connection  therewith  or pursuant
      thereto, as the same may be amended from time to time.

      Obligations  means and all  indebtedness,  obligations and
      liabilities,  of any kind, of the Borrower,  the Guarantors,
      the  European  Subsidiaries  (or any of  them)  to the  Bank
      and/or its  affiliates  including,  but not  limited to, all
      obligations  under the Loan Documents,  and any other notes,
      loan  agreements,  security  agreements,  letters of credit,
      swap  agreements  (as  defined  in  Title  11 of the  United
      States Code), instruments,  accounts receivable,  contracts,
      drafts,  leases,  chattel paper,  indemnities,  acceptances,
      reimbursement     agreements,     repurchase     agreements,
      overdrafts,  however and  whenever  incurred  or  evidenced,
      whether  primary,  secondary,  direct,  indirect,  absolute,
      contingent,  due or to become due, now existing or hereafter
      arising,  and  all  amendments,  modifications  or  renewals
      thereof,   including   without   limitation  all  principal,
      interest,  fees, charges,  advances,  and costs and expenses
      incurred   thereunder   (including,    without   limitation,
      attorneys fees and other costs of collection,  regardless of
      whether suit is commenced).

      Waiver  Agreement  shall  mean  that  certain  Waiver  and
      Amendment  Agreement  dated as of November 20, 2001,  by and
      among,  the Bank,  the  Borrower,  the  Guarantors,  and the
      European Subsidiaries, as amended from time to time.

      Waiver  Documents  shall mean the Waiver Agreement and all
      of  the  documents,   agreements  and  instruments  executed
      and/or   delivered  to  the  Bank  pursuant  to  the  Waiver
      Agreement  (including the documents described in Articles IV
      and V thereof).

      3.3  New  Paragraph  (h) to Section  9.1.  Paragraph  (h) is
hereby added to Section 9.1 of the Credit Agreement as follows:

      (h)  If there  shall  exist an Event of  Default  under  the
      Waiver  Agreement any Waiver  Document or any other document
      or agreement  executed in  connection  therewith or pursuant
      thereto.

           ARTICLE IV - ADDITIONAL TERMS AND CONDITIONS

      4.1  Advance   Payment   Guarantees.   The  Bank  agrees  to
provide  a new  credit  facility  to or  for  the  benefit  of the
Borrower,   the   Guarantors,   and  the  European   Subsidiaries,
pursuant  to which the  London  Branch  will  issue the  following
advance payment  guarantees  (collectively,  the Advance  Payment
Guarantees),   for  the   account  of  the   specified   European
Subsidiary,  in the  amounts  and on or after  the dates set forth
below,  upon the  Borrowers  request  therefor and subject to the
prior  satisfaction  of  the  applicable  terms,   conditions  and
covenants therefor, described in Section 4.2 below:

                (a)  on or after  November  21,  2001,  an Advance
Payment  Guaranty  in the  amount of  E2,199,000  (Euros) to Voest
Alpine Stahl GmbH (Voest) on behalf of Selas SAS;

                (b)  on or after  January  15,  2002,  an  Advance
Payment  Guaranty in the amount of  E1,097,550  (Euros) to Duferco
on behalf of Selas SAS;

                (c)  on or after  November  28,  2001,  an Advance
Payment Guaranty in the amount of Norwegian  Kroners  1,305,000 to
Soral on behalf of CFR;

                (d)  on or after  November  28,  2001,  an Advance
Payment  Guaranty in the amount of  E187,500  (Euros) to Protex on
behalf of CFR;

                (e)  on or after  November  28,  2001,  an Advance
Payment   Guaranty  in  the  amount  of  E48,600  (Euros)  to  LOI
Thermoprocess on behalf of CFR;

                (f)  on or after  December  15,  2001,  an Advance
Payment  Guaranty in the amount of FF 280,000  (French  Francs) to
Swiss Metal on behalf of CFR;

                (g)  on or after  November  28,  2001,  an Advance
Payment  Guaranty in the amount of E25,192.20  (Euros) to Valourec
on behalf of CFR;

                (h)  on or after  November  28,  2001,  an Advance
Payment  Guaranty  in the amount of E25,500  (Euros) to  Suleasing
on behalf of CFR; and

                (i)  on or after  December  15,  2001,  an Advance
Payment  Guaranty in the amount of  FF125,000  (French  Francs) to
NGK on behalf of CFR.

      4.2  Specific  Conditions   Precedent  and  Covenants  For
Advance Payment Guarantees.

           4.2.1The  Banks   obligation   to  issue  any  Advance
Payment  Guaranty  described  in  Section  4.1 above is subject to
the  prior  satisfaction  of  all  of  the  following   conditions
precedent  which the Borrower,  the  Guarantors,  and the European
Subsidiaries acknowledge are material:

                (a)  For  each  Advance  Payment   Guaranty,   the
European  Subsidiaries,  the  Borrower  and the  Guarantors  shall
have  executed  and  delivered  (or  caused  to  be  executed  and
delivered)  to the Bank  such  documents  and  agreements,  as the
Bank,   in  its  sole  and  absolute   discretion,   may  require,
including, without limitation, the following:

                     (I)  A facility  agreement  for each  Advance
Payment  Guaranty,   duly  executed  by  the  particular  European
Subsidiary on whose behalf such Advance  Payment  Guaranty will be
issued,  that will include  certain terms and  conditions  for the
issuance of the Advance  Payment  Guarantees,  such as duration of
such Advance Payment  Guaranty,  applicable fees,  interest rates,
penalty  interest,  and other terms and conditions,  in the Banks
sole and absolute condition;

                     (ii) a  General   Counter   Indemnity,   duly
executed by the  particular  European  Subsidiary  on whose behalf
such Advance Payment Guaranty will be issued; and

                     (iii)such  other  documents  as the Bank,  in
its sole discretion, may require.

                (b)  There  shall not be a  default,  a Default or
an Event of  Default  under the Selas  Term Loan  Agreements,  the
Selas SAS Facility,  the Credit Agreement,  the documents executed
or delivered in connection  with any Advance  Payment  Guaranty or
any  other  Loan  Document  (other  than  the  Financial  Covenant
Defaults);

                (c)  The  requirements of Article V of this Waiver
Agreement shall have been satisfied;

                (d)  The Borrower and the  Guarantors  shall have:
(i)  provided  all  of  the  information  and  documentation,   as
requested by Bank,  for appraisals of the  Collateral,  including,
but not limited to,  appraisals of all real estate,  machinery and
equipment  located in  Pennsylvania,  Ohio,  and Minnesota and all
machinery and  equipment  located in  California;  and (ii) agreed
to   permit    unrestricted   access   for   the   Bank   or   its
representatives  to  perform  such  appraisals;  and pay the costs
and expenses incurred by Bank for such appraisals;

                (e)   The  Borrower,   the  Guarantors,   and  the
European  Subsidiaries  shall  have  provided  the Bank with their
business  plan  for  their   European   operations,   including  a
description  of any  management  changes  in  furtherance  of such
plan; and

                (f)  The   Borrower    shall   have   engaged   in
discussions  with  Voest for the sale of Selas  SAS in  accordance
with the  Borrowers  proposal  to Bank,  and the  Borrower  shall
have  provided  the Bank  with a written  certification  signed by
Borrowers management that it has engaged in such discussions.

           4.2.2The  Banks   obligations  to  issue  any  Advance
Payment  Guaranty  described  in  Section  4.1(b)  through  4.1(i)
above are subject to the  satisfaction,  prior to the  issuance of
any such Advance  Payment  Guaranty,  of: (i) all of the terms and
conditions  set  forth in  Section  4.2.1,  and  (ii)  each of the
following  additional  terms  and  conditions  that  is  specified
below to be satisfied on or before such date of issuance:

                (a)  On or before  December 15, 2001, the Borrower
shall  provide  to Bank a  written  indication  of  interest  from
Voest  in   purchasing   Selas  SAS,   or,  in  the   alternative,
Borrowers  written  statement  that other  potential  buyers have
been contacted about the potential sale of Selas SAS;

                (b)  On or  before  January  31,  2002,  the  Bank
shall have received  completed title searches on the  Pennsylvania
Property,   the  Ohio  Property,   and  the  Minnesota   Property,
acceptable to the Bank in its sole and absolute discretion;

                (c)  On or  before  January  31,  2002,  the  Bank
shall  have  received  completed  appraisals  of  the  Collateral,
acceptable to the Bank in its sole and absolute discretion;

                (d)  Upon the earlier of (i)  February  28,  2002,
or (ii)  receipt  of  payment  by  Selas  SAS  from  Duferco,  the
Borrowers,  the  Guarantors  and  Selas SAS  shall  repay  amounts
outstanding  as necessary to reduce the  Overdraft  Facility to an
amount  that is not greater  than  E4,650,000  (Euros);  provided,
however,  that  nothing  herein  shall be deemed  to waive  Banks
right in its sole  discretion  to  demand  payment  in full of all
amounts  outstanding  under  the  Overdraft  Facility  or the  APG
Facility at any time;

                (e)  On or  before  February  28,  2002,  Borrower
shall  provide  Bank  with a written  certification  that its 2001
fourth  quarter  pre-tax  losses,  if any, for the  Borrower,  the
Guarantors,  the European Subsidiaries and their affiliates,  on a
consolidated basis are not more than $200,000; and

                (f)  On or  before  February  28,  2002,  Borrower
shall  provide  Bank  with a copy of a written  offer to  purchase
Selas SAS, acceptable to the Bank.

           4.2.3On  or  before  December  7,  2001,  the  European
Subsidiaries  shall  deliver,  or  cause to be  delivered,  to the
Bank   opinions   of   their   respective   counsel,    reasonably
satisfactory  to  the  Bank  in  all  respects  (Opinions).   In
addition to the terms and  conditions  set forth in Sections 4.2.1
and 4.2.2,  the Banks  obligations  to issue any Advance  Payment
Guaranty  described  in Section  4.1(b)  through  4.1(i) above are
also subject to the Banks  receipt of the  Opinions  prior to the
issuance of any such Advance Payment Guaranty.

      4.3  Conditions  Precedent for Additional  Advance  Payment
Guaranty  to  Voest  .  The  Bank,   in  its  sole  and   absolute
discretion,  and  without  making  any  commitment  therefor,  may
issue an additional  Advance Payment  Guaranty to Voest, on behalf
of Selas SAS, upon the  satisfaction  of: (i) all of the terms and
conditions  set  forth  in  Sections  4.1 and  4.2 of this  Waiver
Agreement,  and (ii) such other terms and  conditions  as the Bank
in its sole and absolute discretion may determine.

                 ARTICLE V- CONDITIONS PRECEDENT

      The  effectiveness  of this Waiver  Agreement and the Banks
obligations  hereunder are  conditioned  upon the  fulfillment  by
the Borrower,  the  Guarantors  and the European  Subsidiaries  of
all of the following express conditions precedent:

      5.1  Documents to be Delivered  to the Bank.  The  Borrower,
the Guarantors,  and/or the European  Subsidiaries  shall deliver,
or cause  to be  delivered,  to the  Bank,  in form and  substance
reasonably  satisfactory  to the Bank, the documents  described in
Section 4.2.1 hereof and the following documents:

           (a)  This Waiver  Agreement,  executed by the Borrower,
the Guarantors, and the European Subsidiaries;

           (b)  An    Unconditional    Guaranty   and   Suretyship
Agreements,  duly executed by the Borrower and the Guarantors,  as
guarantor  and  surety  for  all  indebtedness,   liabilities  and
obligations   of   the   European   Subsidiaries   to   the   Bank
(collectively, the European Subsidiaries Surety Agreements);

           (c)  Fifth  Amendment  to First  Mortgage  and Security
Agreement,  duly  executed by Borrower as Mortgagor  (with respect
to the Pennsylvania Property);

           (d)  Fifth  Amendment  to First  Mortgage  and Security
Agreement,  duly  executed by Borrower as Mortgagor  (with respect
to the Ohio Property);

           (e)  Second Amendment to Mortgage,  Security  Agreement
and  Fixture  Financing   Statement,   duly  executed  by  RTI  as
Mortgagor (with respect to the Minnesota Property);

           (f)  Warrant of Attorney to Confess Judgment,  executed
by the Borrower and each Guarantor;

           (g)  A  Certification  of  Authority  executed  by  the
Secretary  of  each  of the  Borrower,  the  Guarantors,  and  the
European   Subsidiaries,   each  dated  as  of  the  date  hereof,
certifying  the  incumbency  and signature of the officers of each
such  entity   executing  this  Waiver  Agreement  and  all  other
documents to be delivered by them pursuant  hereto,  together with
evidence  of the  incumbency  of  such  Secretary;  and  Corporate
Resolutions  for each of the  Borrower,  the  Guarantors,  and the
European    Subsidiaries,    certified    by   their    respective
Secretaries,  authorizing  and  approving  this Waiver  Agreement,
and the documents and payments specified herein;

           (h)  Opinions of counsel for each of the  Borrower  and
the Guarantors, satisfactory to the Bank in all respects; and

           (i)  Such other  documents  as may be  required  by the
                Bank.

      5.2  Payment of  One-half  of  Facility  Fee.  The  Borrower
shall  have  paid to the  Bank  the sum of  Twelve  Thousand  Five
Hundred   Dollars   ($12,500)  which  is  one-half  of  the  total
facility  fee of  $25,000  (Facility  Fee),  and  the  remaining
one-half  of the  Facility  Fee in the amount of $12,500  shall be
due and payable in full on January 4, 2002.

      5.3  Payment of Bank's Costs,  Expenses and Legal Fees.  The
Borrower  shall  have paid to the Bank the  amount  of the  Bank's
out-of-pocket costs and expenses,  including,  without limitation,
all  reasonable  fees and  out-of-pocket  expenses  of counsel for
the  Bank  in  connection   with:   (i)  the  Financial   Covenant
Defaults,  (ii) the  negotiation  and  preparation  of the  Waiver
Documents, and (iii) the other Loan Documents.

           ARTICLE VI - REPRESENTATIONS AND WARRANTIES

           To induce the Bank to enter into this Waiver  Agreement
and  as  partial   consideration  for  the  terms  and  conditions
contained    herein,    the   Borrower    makes   the    following
representations  and  warranties  to the  Bank,  each  and  all of
which shall  survive  the  execution  and  delivery of this Waiver
Agreement  and all of the other  documents  executed in connection
herewith:

      6.1  Organization; Authorization; and Location.

           (a)  The  Borrower,  the  Guarantors,  and the European
Subsidiaries are duly  incorporated,  organized,  validly existing
and  in  good  standing  under  the  laws  of  the   jurisdictions
indicated  in the first  paragraph of this Waiver  Agreement,  and
each is duly  authorized to do business,  and is duly qualified as
a foreign  corporation in all jurisdictions  wherein the nature of
its business or property makes such qualification  necessary,  and
has the  corporate  power to own its  property and to carry on its
business as now conducted;

           (b)  The  Borrower,  the  Guarantors,  and the European
Subsidiaries  have the requisite  corporate power and authority to
execute,  deliver and perform  this  Waiver  Agreement  and all of
the documents executed by it in connection herewith.

      6.2  Valid and  Binding  Agreement.  This  Waiver  Agreement
is, and each of the documents  executed  pursuant  hereto will be,
legal,  valid,  and  binding  obligations  of the party or parties
thereto,  enforceable  against each such party in accordance  with
their respective terms.

      6.3  Compliance  with Laws.  The Borrower,  each  Guarantor,
and each  European  Subsidiary  are in  compliance in all material
respects with all laws,  regulations and  requirements  applicable
to its business,  including  without  limitations  all  applicable
Environmental  Laws,  and  each  has  not  received,  and  has  no
knowledge   of,   any  order  or   notice   of  any   governmental
investigation  or of any  violations or claims of violation of any
law,  regulation  or  any  governmental  requirement,   except  as
expressly disclosed herein.

      6.4  No  Conflict;   Government  Approvals.  The  execution,
delivery and  performance  by the Borrower,  each  Guarantor,  and
the European  Subsidiaries of this Waiver  Agreement and the other
documents executed in connection herewith will not:

           (a)  conflict with,  violate or result in the breach of
any provisions of any applicable  law, rule,  regulation or order;
or

           (b)  conflict  with  or  result  in the  breach  of any
provision  of  its  Articles  of  Incorporation,  charter,  and/or
by-laws.  No  authorization,  consent  or  approval  of,  or other
action  by,  and no  notice of or filing  with,  any  governmental
authority  or  regulatory  body is required to be obtained or made
by the Borrower for the due  execution,  delivery and  performance
of this Waiver Agreement.

      6.5  Third  Party  Consents.  The  execution,  delivery  and
performance  by the Borrower,  each  Guarantor,  and each European
Subsidiary  of this Waiver  Agreement  and the  documents  related
hereto will not:

           (a)  require  any  consent or approval of any person or
entity which has not been  obtained  prior to, and which is not in
full force and effect as of, the date of this Waiver Agreement;

           (b)  result in the breach of, default  under,  or cause
the  acceleration  of any obligation  owed under any loan,  credit
agreement,  note, security agreement,  lease indenture,  mortgage,
loan  document or other  agreement  by which the Borrower is bound
or affected; or

           (c)  result in, or require the  creation or  imposition
of, any lien or encumbrance  on any of the  Borrower's  properties
other  than  those  liens or  security  interests  in favor of the
Bank or the liens or security  interests  disclosed to the Bank in
the Loan Documents.

      6.6  Financial Statements; Reporting.

           (a)  Except as  otherwise  disclosed  in writing to the
Bank  prior to the  date  hereof,  all  balance  sheets,  reports,
budgets,  reconciliations,  accounts receivable reports, and other
financial  information  supplied to the Bank by the Borrower  have
been  prepared in  conformity  with GAAP,  and present  fairly the
financial  condition  and results of  operations  of the  Borrower
for the period covered thereby.

           (b)  The Borrower,  each  Guarantor,  and each European
Subsidiary  do not know of any facts,  other  than  those  already
disclosed  in  writing  to the  Bank,  that  materially  adversely
affect  or  in  so  far  as  can  be  foreseen,   will  materially
adversely   affect  their  ability  to  perform  their  respective
obligations   under  this  Waiver   Agreement  and  the  documents
executed in connection herewith.

      6.7  Exclusive  and  First  Priority   Perfected  Lien.  The
Bank  has,  as of the date  hereof,  and shall  continue  to have,
until all of the  Obligations  are paid in full,  first  priority,
valid  perfected  liens upon and security  interests in all of the
Collateral  to secure the  payment and  performance  of all of the
Obligations.

      6.8  No  Untrue  or  Misleading  Statements.   Neither  this
Waiver  Agreement  nor any other  document  executed in connection
herewith  contains  any untrue  statement  of a  material  fact or
omits any material  fact  necessary in order to make the statement
made,  in  light of the  circumstances  under  which it was  made,
accurate.

      6.9  No  Events  of  Default.   Other  than  the   Financial
Covenant  Defaults,  no default or Event of Default  has  occurred
as of the date hereof under any of the Existing Loan Documents.

                 ARTICLE VII - EVENTS OF DEFAULT

      The  occurrence  of any one or more of the  following  shall
constitute an "Event of Default" hereunder:

      7.1  Borrower's   Failure   to  Pay.   The   Borrower,   any
Guarantor,  or any  European  Subsidiary  shall  fail  to pay  any
amount  of  principal,  interest,  fees or other  sums as and when
due under  any of the Loan  Documents,  or any other  Obligations,
whether upon stated maturity, acceleration, or otherwise.

      7.2  Breach  of  Covenants  or  Conditions.  Except  for the
Financial Covenant Defaults, the Borrower,  any Guarantor,  or any
European  Subsidiary  shall fail to  perform or observe  any other
covenant,  term,  agreement or condition in this Waiver  Agreement
(including,  without  limitation,  the  failure  of  the  European
Subsidiaries  to deliver,  or cause to be delivered,  the Opinions
to the  Bank  on or  before  December  7,  2001,  as  required  by
Section 4.2.3  hereof),  the other Waiver  Documents or any of the
other  Loan  Documents  or is in  violation  of or  non-compliance
with any  provision  of this Waiver  Agreement,  the other  Waiver
Documents   or  any  of  the  other  Loan   Documents   after  the
expiration  of any  cure  period,  if any,  set  forth in any such
Loan Documents with respect to such covenant,  term,  agreement or
condition.

      7.3  Defaults  in Other  Material  Agreements.  There  shall
occur any  default  under,  or as defined  in, any other  material
agreement  applicable  to  the  Borrower,  any  Guarantor,  or any
European  Subsidiary or by which the Borrower,  any Guarantor,  or
any  European  Subsidiary  is bound  which  shall not be  remedied
within  the  period  of time  (if any)  within  which  such  other
agreement  permits  such  default  to  be  remedied,  unless  such
default  is waived by the other  party  thereto  or  excused  as a
matter of law.

      7.4  Agreements  Invalid.  The validity,  binding nature of,
or  enforceability  of any material  term or provision of any Loan
Document  is  disputed  by, on behalf  of, or in the right or name
of the Borrower,  any  Guarantor,  or any the European  Subsidiary
or any material  term or  provision  of any such Loan  Document is
found or  declared to be invalid,  avoidable,  or  non-enforceable
by any court of competent jurisdiction.

      7.5  False  Warranties;  Breach of  Representations.  Except
as otherwise  disclosed  to the Bank in writing  prior to the date
hereof,  any  warranty  or  representation  made by the  Borrower,
each  Guarantor,  and/or each  European  Subsidiary in this Waiver
Agreement  or any other Loan  Document  or in any  certificate  or
other  writing   delivered   under  or  pursuant  to  this  Waiver
Agreement or any other Loan  Document,  or in connection  with any
provision   of  this   Waiver   Agreement   or   related   to  the
transactions  contemplated  hereby  shall prove to have been false
or incorrect or breached in any material respect.

      7.6  Bankruptcy.

           (a)  The  Borrower,  any  Guarantor,  or  any  European
Subsidiary   commences  any   bankruptcy,   reorganization,   debt
arrangement,  receivership,  or other case or proceeding under any
bankruptcy,  insolvency or  receivership  law, or any  dissolution
or liquidation proceeding.

           (b)  Any bankruptcy,  reorganization, debt arrangement,
receivership,  or other case or proceeding  under any  bankruptcy,
insolvency   or   receivership   law,   or  any   dissolution   or
liquidation  proceeding,  is involuntarily commenced against or in
respect  of  the  Borrower,   any   Guarantor,   or  any  European
Subsidiary  or  an  order  for  relief  is  entered  in  any  such
proceeding  and such case or  proceeding  is not fully and finally
dismissed within thirty (30) days.

           (c)  A  trustee,   receiver,   or  other  custodian  is
appointed  for  the  Borrower,   any  Guarantor  or  any  European
Subsidiary or a substantial part of any of its/their assets.

      7.7  Failure to Pay Taxes. The Borrower,  any Guarantor,  or
any  European  Subsidiary  shall  fail to pay  when  due any  tax,
assessment  or other  governmental  charge  as and when due to the
appropriate governmental entity.

      7.8  Event of Default Under Other Loan  Documents.  An Event
of Default  (as such term is defined in the Credit  Agreement)  or
a Default  or an Event of  Default  (as each such term is  defined
in the other Loan  Documents)  (other than the Financial  Covenant
Defaults) shall occur under any of the Loan Documents.

                     ARTICLE VIII - REMEDIES

      If an Event of Default  (as  defined in Article  VII of this
Waiver  Agreement)  shall  occur and be  continuing,  at any time,
without  notice to the Borrower,  any  Guarantor,  or any European
Subsidiary:

      8.1  Loan  Documents;  Applicable  Law. The Bank may, in its
sole  discretion,  enforce  all  of  its  remedies  as  set  forth
hereunder,   under  any  of  the  Loan   Documents   and/or  under
applicable law against the Borrower,  the  Guarantors,  and/or the
European Subsidiaries.

      8.2  Additional   Remedies.   The  Bank  may   declare   all
Obligations to be  immediately  due and payable and shall have, in
addition to any other  remedies,  all of the remedies of a secured
party under the Uniform  Commercial  Code (the  Code).  Expenses
of  retaking,  holding,  preparing  for sale,  selling or the like
shall  include  the Bank's  reasonable  attorney's  fees and legal
expenses  incurred  or expended by the Bank to enforce any payment
due to it  hereunder or under the Loan  Documents,  as against the
Borrower,  the  Guarantors,  or the European  Subsidiaries,  or in
the  prosecution  or  defense of any  action,  or  concerning  any
matter  growing out of or in  connection  with the Loan  Documents
and/or the Collateral.

      8.3  Power of Attorney.  The Borrower,  each Guarantor,  and
each European  Subsidiary do hereby make,  constitute  and appoint
any  officer  or  agent  of  the  Bank  as  the  true  and  lawful
attorney-in-fact  of  the  Borrower,   each  Guarantor,   and  the
European  Subsidiaries,  with power to, at the  Bank's  option and
at the expense and  liability  of the  Borrower,  the  Guarantors,
and the European  Subsidiaries:  (a) sign,  for the Borrower,  any
Guarantor,   and/or   the   European   Subsidiaries,    financing,
continuation  or amendment  statements  pursuant to the Code;  (b)
endorse the name of the Borrower,  any Guarantor,  or any European
Subsidiary  or any of the  respective  officers or agents  thereof
upon  any  notes,   checks,   drafts,   money  orders,   or  other
instruments  of payment  with respect to the  Collateral  that may
come into the  Bank's  possession  in full or  partial  payment of
any of the  Obligations;  and (c)  after an Event of  Default  has
occurred,  sue for,  compromise,  settle and  release  any and all
claims and disputes  with respect to the  Collateral;  granting to
said  attorney  of  the  Borrower,  the  Guarantors,   and/or  the
European  Subsidiaries  full  power  to  do  any  and  all  things
necessary  to be done in and  about  the  premises  as  fully  and
effectually as the Borrower,  any  Guarantor,  and/or the European
Subsidiaries  might or could do.  The  Borrower,  the  Guarantors,
and  the  European   Subsidiaries  hereby  ratify  all  that  said
attorney  shall  lawfully  do  or  cause  to  be  done  by  virtue
hereof.  This power of attorney is coupled with an  interest,  and
is irrevocable.

      8.4  Payment  of  Expenses.  At its  option,  the  Bank  may
discharge  taxes,   liens,   security   interests  or  such  other
encumbrances  as may attach to the  Collateral,  as  determined by
the Bank to be necessary.  The Borrower,  the Guarantors,  and the
European  Subsidiaries  will  reimburse the Bank on demand for any
payment so made or any expense  incurred  by the Bank  pursuant to
the foregoing  authorization,  and the Collateral also will secure
any  advances  or  payments so made or expenses so incurred by the
Bank.

                   ARTICLE IX - GENERAL RELEASE

      EFFECTIVE  UPON  THE  BORROWER,  THE  GUARANTORS,   AND  THE
EUROPEAN  SUBSIDIARIES,  FOR AND ON BEHALF OF  THEMSELVES  AND ALL
PERSONS AND/OR  ENTITIES  CLAIMING BY, THROUGH AND/OR UNDER ANY OF
THEM,  INCLUDING,  BUT NOT  LIMITED  TO,  ALL OF THEIR  RESPECTIVE
PAST AND  PRESENT  PARTNERS,  DIRECTORS,  SHAREHOLDERS,  OFFICERS,
EMPLOYEES,   ATTORNEYS,   ACCOUNTANTS,   ADMINISTRATORS,   AGENTS,
PARENT CORPORATIONS,  SUBSIDIARIES,  AFFILIATES,  REPRESENTATIVES,
PREDECESSORS,  SUCCESSORS AND ASSIGNS AND WHERE  APPLICABLE  THEIR
RESPECTIVE HEIRS,  EXECUTORS AND TRUSTEES  (COLLECTIVELY  REFERRED
TO HEREIN,  JOINTLY  AND  SEVERALLY,  AS THE  RELEASORS)  HEREBY
JOINTLY AND  SEVERALLY  UNCONDITIONALLY  REMISE,  RELEASE,  ACQUIT
AND  FOREVER  DISCHARGE  THE BANK AND ALL OF ITS PAST AND  PRESENT
DIRECTORS,    SHAREHOLDERS,    OFFICERS,   EMPLOYEES,   ATTORNEYS,
ACCOUNTANTS,    ADMINISTRATORS,   AGENTS,   PARENT   CORPORATIONS,
SUBSIDIARIES,    AFFILIATES,    REPRESENTATIVES,     PREDECESSORS,
SUCCESSORS,  ASSIGNS AND WHERE APPLICABLE THEIR RESPECTIVE  HEIRS,
EXECUTORS  AND  TRUSTEES  (COLLECTIVELY  REFERRED TO HEREIN AS THE
RELEASEES),   OF,   FROM  AND  WITH   RESPECT  TO  ANY  AND  ALL
GRIEVANCES,   DISPUTES,  MANNER  OF  ACTIONS,  CAUSES  OF  ACTION,
SUITS,  OBLIGATIONS,  LIABILITIES,  LOSSES, DEBTS, DAMAGES,  DUES,
SUMS OF MONEY, ACCOUNTS,  RECKONINGS,  CONTROVERSIES,  AGREEMENTS,
CLAIMS,  DEMANDS,  COUNTERCLAIMS AND CROSSCLAIMS,  INCLUDING,  BUT
NOT  LIMITED TO ALL CLAIMS AND CAUSES OF ACTION  ARISING OUT OF OR
RELATED  TO THE LOAN  DOCUMENTS  AND/OR ALL  TRANSACTIONS  RELATED
THERETO,  WHETHER KNOWN OR UNKNOWN,  ANTICIPATED OR UNANTICIPATED,
DIRECT,  INDIRECT OR CONTINGENT,  ARISING IN LAW OR EQUITY,  WHICH
THE  RELEASORS  (OR ANY OF THEM)  EVER HAD,  NOW HAS,  OR MAY EVER
HAVE  AGAINST  ANY  ONE  OR  MORE  OF  THE  RELEASEES,   FROM  THE
BEGINNING OF TIME TO THE DATE OF THIS WAIVER AGREEMENT.

                    ARTICLE X - MISCELLANEOUS

      10.1 Continuing  Effect.  Except as amended  hereby,  all of
the Loan  Documents  shall  remain in full  force and  effect  and
bind and  inure to the  benefit  of the  parties  thereto  and are
hereby ratified and confirmed.

      10.2 Choice of Law and Venue;  Submission to Jurisdiction;
Selection of Forum; Jury Trial Waiver.

           10.2.1    This  Waiver  Agreement  and the  other  Loan
Documents  (unless  expressly  provided  to  the  contrary  in any
other Loan  Document  with  respect to such other Loan  Document),
the  construction,  interpretation,  and  enforcement  hereof  and
thereof,  and the rights of the parties  hereto and  thereto  with
respect  to  all  matters  arising   hereunder  or  thereunder  or
related  hereto and thereto  shall be determined  under,  governed
by,   and   construed   in   accordance   with  the  laws  of  the
Commonwealth of Pennsylvania.

           10.2.2     The Bank, the Borrower, the Guarantors,  and
the European  Subsidiaries  agree that all actions or  proceedings
arising in  connection  with this waiver  agreement  and the other
loan  documents  shall be tried and litigated only in the state or
federal  courts  located  in  the  Commonwealth  of  Pennsylvania,
provided,  however,  that any  suit,  action  or other  proceeding
seeking  enforcement  against any Collateral or other property may
be brought,  at Bank's option,  in the courts of any  jurisdiction
where Bank  elects to bring such  action or where such  Collateral
or other  property  may be found.  The  Bank,  the  Borrower,  the
Guarantors,  and the European  Subsidiaries  waive,  to the extent
permitted  under  applicable  law,  any  right  each  may  have to
assert  the  doctrine  of forum  non  conveniens  or to  object to
venue to the  extent  any  suit,  action  or other  proceeding  is
brought in accordance with this section.

           10.2.3    The Bank, the Borrower,  the Guarantors,  and
the  European   Subsidiaries  hereby  waive  personal  service  of
process  and agree  that a summons  and  complaint  commencing  an
action or  proceeding  in such  court  shall be  proper  and shall
confer   personal   jurisdiction   if  served  by   registered  or
certified mail, return receipt  requested,  in accordance with the
notice provisions of this Waiver Agreement.

           10.2.4    The Bank, the Borrower,  the Guarantors,  and
the European  Subsidiaries  hereby waive their  respective  rights
to a jury  trial of any  claim or cause of  action  based  upon or
arising out of this Waiver  Agreement  or any other Loan  Document
or  any  of  the  transactions  contemplated  herein  or  therein,
including  all  contract  claims,  tort  claims,  breach  of  duty
claims,   and  all  other   common   law  or   statutory   claims,
whatsoever.  The Bank,  the  Borrower,  each  Guarantor,  and each
European   Subsidiary   warrant  and  represent   that  they  have
reviewed  this  waiver  and,  following  consultation  with  legal
counsel of its or his choice,  do hereby  knowingly,  voluntarily,
intentionally,  and expressly  waive their right to jury trial and
right  to  claim  or  recover,   in  any  such  suit,   action  or
proceeding,  any  special,  exemplary,  punitive or  consequential
damages or any damages  other  than,  or in  addition  to,  actual
damages.  In the  event  of  litigation,  a copy  of  this  waiver
agreement  may be filed  as a  written  consent  to a trial by the
court.

           10.2.5    The Bank, the Borrower,  the Guarantors,  and
the European  Subsidiaries  hereby acknowledge and agree that this
Section  is  a  specific  and  material   aspect  of  this  waiver
agreement   and  that  neither  the  Bank,   the   Borrower,   any
Guarantor,  nor any  European  Subsidiary  would  enter  into this
Waiver  Agreement  if the waivers set forth in this  section  were
not a part of thereof.

      10.3 Cooperation;  Other  Documents.  At all times following
the  execution  of  this  Waiver  Agreement,  the  Borrower,  each
Guarantor,   and  each  European   Subsidiary  shall  execute  and
deliver to the Bank,  or shall cause to be executed and  delivered
to the  Bank,  and  shall do or  cause  to be done all such  other
acts and things as the Bank may  reasonably  deem to be  necessary
or  desirable  to assure the Bank of the  benefit  of this  Waiver
Agreement  and  the  documents  comprising  or  relating  to  this
Waiver Agreement.

      10.4 Remedies  Cumulative;  No Waiver.  The  rights,  powers
and  remedies  of the  Bank in this  Waiver  Agreement  and in the
other Loan  Documents  are  cumulative  and not  exclusive  of any
right,  power or remedy provided in the Loan Documents,  by law or
in equity  and no  failure or delay on the part of the Bank in the
exercise of any right,  power or remedy shall  operate as a waiver
thereof,  nor shall any single or partial  exercise  of any right,
power or remedy  preclude any other or further  exercise  thereof,
or the exercise of any other right, power or remedy.

      10.5 Notices.  Any  notice  given  pursuant  to this  Waiver
Agreement  or pursuant to any document  comprising  or relating to
this Waiver  Agreement  or any of the other Loan  Documents  shall
be in  writing,  including  telecopies.  Notice  given by telecopy
shall be  deemed  to have  been  given  and  received  when  sent.
Notice  given by overnight  mail  courier  shall be deemed to have
been given and  received  one (1) day after the date  delivered to
such  overnight  courier by the party sending such Notice.  Notice
by mail  shall be  deemed to have been  given and  received  three
(3)  days  after  the date  deposited,  when  sent by first  class
certified mail, postage prepaid, and addressed as follows:

           To the Borrower,  the  Guarantors,  and/or the European
Subsidiaries:

                Mr. Frank A. Toczylowski
                Vice President and Treasurer
                Selas Corporation of America
                2034 Limekiln Pike
                Dresher, PA 19025

           With a copy to:

                Drinker Biddle & Reath LLP
                One Logan Square
                18th and Cherry Streets
                Philadelphia, PA 19103
                Attention: Michael B. Jordan, Esquire
                Telecopy Number: 215-988-2757

           To the Bank:

                First Union National Bank
                2240 Butler Pike
                Plymouth Meeting, PA 19462
                Attention: Robert Cordell, Senior Vice President
                Telecopy Number: 610-941-3129

           With a copy to:

                Duane, Morris & Heckscher, LLP
                One Liberty Place, 41st Floor
                Philadelphia, PA  19103
                Attention: Margery N. Reed, Esquire
                Telecopy Number: 215-979-1020

A party may change his or its  address  by giving  written  notice
of the changed address to the other parties, as specified herein.

      10.6 Indemnification.  If,  after  receipt of any payment of
all or any  part of the  Obligations,  the  Bank is  compelled  to
surrender  such  payment  to any  person or entity  for any reason
(including,   without   limitation,   a  determination  that  such
payment  is  void  or  voidable  as  a  preference  or  fraudulent
conveyance,  an  impermissible  setoff,  or a  diversion  of trust
funds),  then this Waiver  Agreement and the other Loan  Documents
shall  continue  in the full force and effect,  and the  Borrower,
each  Guarantor,  and each  European  Subsidiary  shall be jointly
and  severally  liable for, and shall  indemnify,  defend and hold
harmless   the  Bank   with   respect   to  the  full   amount  so
surrendered.  The  provisions  of this Section  shall  survive the
termination   of  this  Waiver   Agreement   and  the  other  Loan
Documents and shall be and remain  effective  notwithstanding  the
payment of the  Obligations,  the  cancellation  of any note,  the
release  of any  lien,  security  interest  or  other  encumbrance
securing  the  Obligations  or any other action which the Bank may
have  taken in  reliance  upon its  receipt of such  payment.  Any
cancellation  of any  note,  release  of any such  encumbrance  or
other such action  shall be deemed to have been  conditioned  upon
any  payment  of  the   Obligations   having   become   final  and
irrevocable.

      10.7 Costs,  Expenses and  Attorneys'  Fees.  The  Borrower,
the  Guarantors,  and the  European  Subsidiaries  agree to pay on
demand by the Bank,  all  out-of-pocket  fees,  costs and expenses
incurred  by  the  Bank,   including,   without  limitation,   all
appraisal  fees and  expenses and all fees and expenses of counsel
for  the   Bank  in   connection   with:   (i)  the   negotiation,
preparation and enforcement of this Waiver  Agreement,  the Waiver
Documents,  the other Loan  Documents and all other  documents and
instruments   executed  in   connection   herewith  or   otherwise
relating to this Waiver  Agreement;  and (ii) the  enforcement  or
exercise by the Bank of its rights and  remedies  with  respect to
the  collection  of the  Obligations  or to  preserve,  protect or
enforce its interests.

      10.8 Bankruptcy/Relief   from   Automatic   Stay.   If   any
bankruptcy,  insolvency,  reorganization or rehabilitation case or
proceeding   is  commenced  by  or  against  the   Borrower,   any
Guarantor,  or any European  Subsidiary  under any state,  federal
or foreign proceeding  (including,  without  limitation,  title 11
of  the  United  States  Code  (the   "Bankruptcy   Code")),   the
Borrower,  each  Guarantor,  and each European  Subsidiary  hereby
agree  that the Bank  and/or its  nominee(s)  or  assignee(s)  are
entitled to, and the Borrower,  each Guarantor,  and each European
Subsidiary  hereby waive any objections to,  immediate relief from
any stay imposed by Section 362 or 105 of the  Bankruptcy  Code or
other  applicable  law or against  the  exercise of the rights and
remedies  otherwise  available  to the Bank and/or its  nominee(s)
or  assignee(s)  as provided in this Waiver  Agreement,  the other
Waiver  Documents,  the  other  Loan  Documents  and as  otherwise
provided  by  law.  Upon  the  occurrence  of any  of  the  events
described in this  Section,  the  Borrower,  each  Guarantor,  and
each  European  Subsidiary  covenant  to take  any  action  deemed
necessary  or  convenient  by the Bank and/or its  nominee(s)  and
assignee(s)   to  enable  the  Bank  and/or  its   nominee(s)  and
assignee(s)  to  continue  to  exercise  its rights  and  remedies
under this Waiver Agreement.

      10.9 Survival  of   Representations   and  Warranties.   All
representations  and warranties of the Borrower,  the  Guarantors,
and  the   European   Subsidiaries   contained   in  this   Waiver
Agreement,  the other Waiver  Document,  the other Loan Documents,
and  in  all  other   documents   and   instruments   executed  in
connection  herewith or therewith  shall  survive the execution of
this Waiver  Agreement  and are  material and have been or will be
relied upon by the Bank,  notwithstanding  any investigation  made
by any person,  entity or  organization  on the Bank's behalf.  No
implied  representations  or warranties  are created or arise as a
result of this Waiver  Agreement or the  documents  comprising  or
relating to this Waiver Agreement.

      10.10Headings.  The headings and  underscoring  of articles,
sections and clauses  have been  included  herein for  convenience
only and shall  not be  considered  in  interpreting  this  Waiver
Agreement.

      10.11Integration.  This Waiver  Agreement  and all documents
and  instruments  executed in  connection  herewith  or  otherwise
relating   to   this   Waiver   Agreement,    including,   without
limitation,  the Loan Documents,  constitute the sole agreement of
the  parties  with  respect  to  the  subject  matter  hereof  and
thereof and supersede  all oral  negotiations  and prior  writings
with respect to the subject matter hereof and thereof.

      10.12Amendment  and  Waiver.  No  amendment  of this  Waiver
Agreement,  and no waiver,  discharge or termination of any one or
more of the  provisions  thereof,  shall be  effective  unless set
forth in writing and signed by all of the parties hereto.

      10.13Successors and Assigns.  This Waiver  Agreement and the
other  Loan  Documents:  (a) shall be binding  upon the Bank,  the
Borrower,  each Guarantor,  and each European  Subsidiary and upon
their   respective   officers,   directors,   employees,   agents,
trustees,    representatives,    nominees,   parent   corporation,
subsidiaries,  heirs,  executors,  administrators,  successors  or
assigns,  and (b) shall  inure to the  benefit  of the  Bank,  the
Borrower,  each Guarantor,  and each European Subsidiary provided,
however,  that neither the Borrower nor any  Guarantor or European
Subsidiary  may  assign  any  rights  hereunder  or  any  interest
herein  without  obtaining the prior written  consent of the Bank,
and any such  assignment  or  attempted  assignment  shall be void
and of no effect with respect to the Bank.

      10.14Severability  of  Provisions.  Any  provision  of  this
Waiver  Agreement that is held to be  inoperative,  unenforceable,
void  or  invalid   in  any   jurisdiction   shall,   as  to  that
jurisdiction,  be  ineffective,  unenforceable,  void  or  invalid
without  affecting the remaining  provisions in that  jurisdiction
or the  operation,  enforceability  or validity of that  provision
in any  other  jurisdiction,  and to this  end the  provisions  of
this Waiver  Agreement are declared to be  severable.  This Waiver
Agreement shall remain valid and enforceable  notwithstanding  the
invalidity,  insufficiency,  or unenforceability of any other Loan
Document.

      10.15Conflicting  Provisions.  To the extent that any of the
terms  in  this  Waiver  Agreement  contradict  any of  the  terms
contained in any of the Loan  Documents,  the terms of this Waiver
Agreement shall control.

      10.16Joint  and  Several  Liability.   The  obligations  and
liabilities  of the  Borrower  and each  Guarantor  hereunder  are
joint and several.

      10.17     Intent to Limit  Charges to Maximum  Lawful  Rate.
In no event shall the interest  rate or rates  payable  under Loan
Documents,  as amended by this  Waiver  Agreement,  plus any other
amounts  paid in  connection  herewith,  exceed the  highest  rate
permissible  under any law that a court of competent  jurisdiction
shall,  in a final  determination,  deem  applicable.  The parties
hereto,   in  executing  and  delivering  this  Waiver  Agreement,
intend  legally  to agree upon the rate or rates of  interest  and
manner of payment  stated  within  it;  provided;  however,  that,
anything  contained  herein to the  contrary  notwithstanding,  if
said rate or rates of  interest  or manner of payment  exceeds the
maximum  allowable  under  applicable law, then, ipso facto, as of
the date hereof,  the Borrower,  the Guarantors,  and the European
Subsidiaries  are and  shall be  liable  only for the  payment  of
such  maximum as allowed by law,  and  payment  received  from the
Borrower,  the  Guarantors,   and  the  European  Subsidiaries  in
excess  of  such  legal  maximum,   whenever  received,  shall  be
applied to reduce the  principal  balance  of the  Obligations  to
the extent of such excess.

      10.18Counterparts;   Effectiveness.  This  Waiver  Agreement
may be  executed  by  facsimile  signatures  and in any  number of
counterparts   and   by  the   different   parties   on   separate
counterparts,  and each such counterpart  shall be deemed to be an
original,  but all such  counterparts  shall  together  constitute
one and the same Waiver  Agreement.  This Waiver  Agreement  shall
be deemed to have been  executed and  delivered  when the Bank has
received  facsimile  counterparts  hereof  executed by all parties
listed on the signature pages hereto.


    [The remainder of this page is intentionally left blank.]



      IN WITNESS WHEREOF, the undersigned have caused this Waiver
Agreement to be executed by their duly authorized officers on
the date first above written.

ATTEST:                   FIRST UNION NATIONAL BANK

  /s/ C. S. Orellana
                          By:              /s/  Robert Cordell
                             Name:  Robert Cordell
                             Title: Senior Vice President


ATTEST:                   SELAS CORPORATION OF
                             AMERICA
   /s/ Judith L. Gatens
                          By:       /s/  Francis A.
Toczylowski
                             Name:  Francis A. Toczylowski
                             Title: Vice President


ATTEST:                   SELAS SAS


  /s/ Robert Pernelle               By:           /s/  Christian
Bailliart
  Sales Manager              Name:  Christian Bailliart
                             Title: President


ATTEST:                    CFR-CECF FOFUMI RIPOCHE


  /s/ Gerard Goset           By:           /s/  Christian
Bailliart
  Chief Operating Officer           Name:  Christian Bailliart
                             Title: President


ATTEST:                   DEUER MANUFACTURING, INC.


   /s/ Judith L. Gatens
                          By:       /s/  Francis A.
Toczylowski
                             Name:  Francis A. Toczylowski
                             Title: Vice President




ATTEST:                   RESISTANCE TECHNOLOGY, INC.,


   /s/ Judith L. Gatens
                          By:       /s/  Francis A.
Toczylowski
                             Name:  Francis A. Toczylowski
                             Title: Vice President


ATTEST:                   RTI EXPORT, INC.


   /s/ Judith L. Gatens
                          By:       /s/  Francis A.
Toczylowski
                             Name:  Francis A. Toczylowski
                             Title: Vice President


ATTEST:                   RTI ELECTRONICS, INC.


   /s/ Judith L. Gatens
                          By:       /s/  Francis A.
Toczylowski
                             Name:  Francis A. Toczylowski
                             Title: Vice President