EXHIBIT 3.7

                              AMENDED AND RESTATED

                          CERTIFICATE OF INCORPORATION

                                       OF

                            NELSON STUD WELDING, INC.

          NELSON STUD WELDING, a corporation organized and existing under and by
virtue of the General Corporation Law of the State of Delaware (the "Company"),
DOES HEREBY CERTIFY:

          FIRST: That by written consent of the majority of the directors, a
          resolution was duly adopted setting forth a proposed Amended and
          Restated Certificate of Incorporation of the Company (the
          "Certificate"). The resolution setting forth the amendment is as
          follows:

                    RESOLVED, that Article 4 of the Certificate of Incorporation
               of the Company filed with the Secretary of State of the State of
               Delaware on February 2, 2000 is amended and that such amendment
               has been incorporated into the Amended and Restated Certificate
               of Incorporation ("the "Certificate"), substantially in the form
               of Exhibit A attached hereto; and further

                    RESOLVED, that Article 10 is added to the Certificate of
               Incorporation of the Company filed with the Secretary of State of
               the State of Delaware on February 2, 2000 and that such amendment
               has been incorporated into the Amended and Restated Certificate
               of Incorporation ("the "Certificate"), substantially in the form
               of Exhibit A attached hereto; and further

                    RESOLVED, that the Certificate is hereby approved and
               adopted without the consent of shareholders of the Company in
               accordance with the provisions of Sections 241 and 245 of the
               General Corporation Law of the State of Delaware and shall become
               effective upon being filed with the Secretary of State of the
               State of Delaware; and further

                    RESOLVED, that the officers of the Company, including the
               Chairman, are hereby authorized and empowered to take any and all
               action and to execute and deliver any and all documents, as any
               such officer deems necessary or advisable to effect the
               above-mentioned amendment and restatement, without further
               authority or approval by the board of directors of the Company.



          SECOND: That the Company has not received any payment for any of its
          stock.

          THIRD: That said Certificate restates and integrates and further
          amends in its entirety the Certificate of Incorporation of this
          Company. The Certificate was duly adopted in accordance with the
          provisions of Sections 241 and 245 of the General Corporation Law of
          the State of Delaware.

          FOURTH: This Certificate shall become effective immediately upon its
          filing with the Secretary of State of the State of Delaware and upon
          the filing of this Certificate, the Certificate of Incorporation of
          the Company shall be amended and restated in its entirety to read as
          set forth in Exhibit A attached hereto.

          IN WITNESS WHEREOF, the Company has caused this Certificate to be
executed by                    , its            , this       day of March, 2000.
            -------------------      -----------       -----

                                        NELSON STUD WELDING, INC.


                                        By:
                                            ------------------------------------
                                            Name:
                                            Title:

                                       -2-




                                    Exhibit A

                              AMENDED AND RESTATED

                         CERTIFICATE OF INCORPORATION OF

                            NELSON STUD WELDING, INC.

          1. Name. The name of the Corporation is Nelson Stud Welding, Inc.

          2. Registered Office and Agent. The address of the Corporation's
registered office in the State of Delaware is 1209 Orange Street, in the City of
Wilmington, County of New Castle. The name of the Corporation's registered agent
at such address is The Corporation Trust Company.

          3. Purpose. The purposes for which the Corporation is formed are to
engage in any lawful act or activity for which corporations may be organized
under the General Corporation Law of Delaware and to possess and exercise all of
the powers and privileges granted by such law and any other law of Delaware.

          4. Authorized Capital. The aggregate number of shares of stock which
the Corporation shall have authority to issue is 3,045,000 shares, divided into
three (3) classes consisting of 1,045,000 shares of Preferred Stock, par value
$.01 per share ("Preferred Stock"), 1,000,000 shares of Class A Common Stock,
par value $.01 per share ("Class A Common Stock"), and 1,000,000 shares of Class
B Common Stock, par value $.01 per share ("Class B Common Stock"). Class A
Common Stock and Class B Common Stock are hereinafter sometimes collectively
referred to as "Common Stock."

          The following is a statement of the designations, preferences,
qualifications, limitations, restrictions and the special or relative rights
granted to or imposed upon the shares of each such class.

          A.   PREFERRED STOCK

                    1. Issue in Series. Preferred Stock may be issued from time
               to time in one or more series, each such series to have the terms
               stated herein or in the resolution of the Board of Directors of
               the Corporation providing for its issue. All shares of any one
               series of Preferred Stock will be identical, but shares of
               different series of Preferred Stock need not be identical or rank
               equally except insofar as provided by law or herein.

                    2. Creation of Series. In addition to the Series A Junior
               Preferred Stock provided for herein, the Board of Directors will
               have authority by resolution to cause to be created one or more
               series of

                                       -3-




               Preferred Stock, and to determine and fix with respect to each
               series prior to the issuance of any shares of the series to which
               such resolution relates:

                         a. The distinctive designation of the series and the
                    number of shares which will constitute the series, which
                    number may be increased or decreased (but not below the
                    number of shares then outstanding) from time to time by
                    action of the Board of Directors;

                         b. The dividend rate and the times of payment of
                    dividends on the shares of the series, whether dividends
                    will be cumulative, and if so, from what date or dates;

                         c. The price or prices at which, and the terms and
                    conditions on which, the shares of the series may be
                    redeemed at the option of the Corporation;

                         d. Whether or not the shares of the series will be
                    entitled to the benefit of a retirement or sinking fund to
                    be applied to the purchase or redemption of such shares and,
                    if so entitled, the amount of such fund and the terms and
                    provisions relative to the operation thereof;

                         e. Whether or not the shares of the series will be
                    convertible into, or exchangeable for, any other shares of
                    stock of the Corporation or other securities, and if so
                    convertible or exchangeable, the conversion price or prices,
                    or the rates of exchange, and any adjustments thereof, at
                    which such conversion or exchange may be made, and any other
                    terms and conditions of such conversion or exchange;

                         f. The rights of the shares of the series in the event
                    of voluntary or involuntary liquidation, dissolution or
                    winding up of the Corporation;

                         g. Whether or not the shares of the series will have
                    priority over or be on a parity with or be junior to the
                    shares of any other series or class in any respect or will
                    be entitled to the benefit of limitations restricting the
                    issuance of shares of any other series or class having
                    priority over or being on a parity with the shares of such
                    series in any respect, or restricting the payment of
                    dividends on or the making of other distributions in respect
                    of shares of any other series or class ranking junior to the
                    shares of the series as to dividends or assets, or
                    restricting the purchase or redemption of the shares of any
                    such junior series or class, and the terms of any such
                    restriction;

                                       -4-




                         h. Whether the series will have voting rights, in
                    addition to any voting rights provided by law, and, if so,
                    the terms of such voting rights; and

                         i. Any other preferences, qualifications, privileges,
                    options and other relative or special rights and limitations
                    of that series.

                    3. Dividends. Holders of Preferred Stock shall be entitled
               to receive, when, as and if declared by the Board of Directors,
               out of funds legally available for the payment thereof, dividends
               at the rates fixed herein for the Series A Junior Preferred Stock
               and by the Board of Directors for any other series, and no more,
               before any dividends shall be declared and paid, or set apart for
               payment, on Common Stock with respect to the same dividend
               period.

                    4. Preference on Liquidation. In the event of the voluntary
               or involuntary liquidation, dissolution or winding up of the
               Corporation, holders of each series of Preferred Stock will be
               entitled to receive the amount fixed for such series plus, in the
               case of the Series A Junior Preferred Stock or any other series
               on which dividends will have been determined by the Board of
               Directors to be cumulative, an amount equal to all dividends
               accumulated and unpaid thereon to the date of final distribution
               whether or not earned or declared before any distribution shall
               be paid, or set aside for payment, to holders of Common Stock. If
               the assets of the Corporation are not sufficient to pay such
               amounts in full, holders of all shares of Preferred Stock will
               participate in the distribution of assets ratably in proportion
               to the full amounts to which they are entitled or in such order
               or priority, if any, as will have been fixed in the resolution or
               resolutions providing for the issue of the series of Preferred
               Stock. Neither the merger nor consolidation of the Corporation
               into or with any other corporation or entity, nor a sale,
               transfer or lease of all or part of its assets, will be deemed a
               liquidation, dissolution or winding up of the Corporation within
               the meaning of this paragraph except to the extent specifically
               provided for herein.

                    5. Redemption. The Corporation, at the option of the Board
               of Directors, may redeem all or part of the shares of any series
               of Preferred Stock on the terms and conditions fixed in this
               Certificate for the Series A Junior Preferred Stock and by the
               Board of Directors for any other series.

                    6. Voting Rights. Except as otherwise required by law, as
               otherwise provided herein or as otherwise determined by the Board
               of Directors as to the shares of any series of Preferred Stock
               prior to the issuance of any such shares, the holders of
               Preferred Stock shall have no

                                       -5-



               voting rights and shall not be entitled to any notice of meeting
               of stockholders.

          B.   SERIES A JUNIOR PREFERRED STOCK

                    1. Designation, Number of Shares. The first series of
               Preferred Stock shall be designated as the 12% Series A Junior
               Preferred Stock ("Series A Junior Preferred Stock"), and the
               number of shares which shall constitute such series shall be
               45,000. The par value of the Series A Junior Preferred Stock
               shall be $.01 per share.

                    2. Accrual and Payment of Dividends

                         a. The holders of Series A Junior Preferred Stock shall
                    be entitled to receive, when, as and if declared by the
                    Board of Directors out of funds of the Corporation legally
                    available therefor, cumulative cash dividends at the rate of
                    $12 per share per annum.

                         Such dividends shall be payable in annual installments
                    in arrears commencing April 1, 2001 and thereafter on the
                    first day of April (unless such day is not a business day in
                    which event on the last preceding business day) in each such
                    year (hereinafter referred to as a "Dividend Accrual Date"),
                    except that the dividend payment payable on April 1, 2001
                    shall be calculated from the date of original issuance
                    through April 1, 2001. Each such dividend on Series A Junior
                    Preferred Stock when paid shall be payable to holders of
                    record as they appear on the stock books of the Corporation
                    on the date established by the Board of Directors of the
                    Corporation as the record date for the payment of such
                    dividend (which record date shall not precede the date upon
                    which the resolution fixing such record date is adopted and
                    which record date shall be not more than sixty days prior to
                    such action). If no record date is fixed, the record date
                    for determining holders for such purpose shall be at the
                    close of business on the date on which the Board of
                    Directors adopts the resolution relating to such dividend
                    payment. Dividends with respect to any shares of Series A
                    Junior Preferred Stock shall accrue (whether or not earned
                    or declared) from the date of issue of such shares.

                         b. Such dividends on the Series A Junior Preferred
                    Stock shall be cumulative, whether or not earned or
                    declared, so that if at any time full cumulative dividends
                    at the rate aforesaid on all shares of Series A Junior
                    Preferred Stock then outstanding to the end of the annual
                    dividend period next preceding such time shall not have been
                    paid, the amount of the deficiency shall be paid before any
                    sum shall be set aside for or applied by the Corporation

                                       -6-


                    to the purchase, redemption or other acquisition for value
                    of any shares of Junior Stock (either pursuant to any
                    applicable sinking fund requirement or otherwise) or any
                    dividend or other distribution shall be paid or declared and
                    set apart for payment on any Junior Stock (other than a
                    dividend payable in Junior Stock); provided, however, that
                    the foregoing shall not prohibit the Corporation from
                    repurchasing shares of Junior Stock from a former employee
                    of the Corporation (or a subsidiary of the Corporation)
                    where such repurchase arises from the Corporation's option
                    to repurchase such shares upon termination of such
                    employee's employment with the Corporation (or a subsidiary)
                    pursuant to a written agreement between the Corporation and
                    such employee. Accrued dividends on the Series A Junior
                    Preferred Stock if not paid on the first or any subsequent
                    Dividend Accrual Date following accrual shall thereafter
                    accrue additional dividends in respect thereof (the
                    "Additional Dividends"), compounded annually, at the rate of
                    12% per annum.

                         c. When dividends are not paid in full upon the Series
                    A Junior Preferred Stock and any other stock ranking on a
                    parity as to dividends with the Series A Junior Preferred
                    Stock, all dividends paid upon shares of Series A Junior
                    Preferred Stock and any other stock ranking on a parity as
                    to dividends with the Series A Junior Preferred Stock shall
                    be paid pro rata so that in all cases the amount of
                    dividends paid per share on the Series A Junior Preferred
                    Stock and such other stock shall bear the same ratio that
                    accrued dividends per share on the shares of Series A Junior
                    Preferred Stock and such other stock bear to each other.
                    Except as provided in the preceding sentence, unless full
                    cumulative dividends on the Series A Junior Preferred Stock
                    have been paid, no dividends shall be declared or paid or
                    set aside for payment upon any other stock of the
                    Corporation ranking on a parity with the Series A Junior
                    Preferred Stock as to dividends.

                         d. An annual dividend period shall commence on the day
                    following a Dividend Accrual Date and shall end on the next
                    succeeding Dividend Accrual Date.

                    3.   Preference on Liquidation

                         a. In the event that the Corporation shall be
                    liquidated, dissolved or wound up, whether voluntarily or
                    involuntarily, after all creditors of the Corporation shall
                    have been paid in full, the holders of the Series A Junior
                    Preferred Stock shall be entitled to receive, out of the
                    assets of the Corporation legally available for distribution
                    to its stockholders, whether from capital, surplus or

                                       -7-



                    earnings, before any amount shall be paid to the holders of
                    any shares of Junior Stock, an amount equal to $100 in cash
                    per share plus an amount equal to full cumulative dividends
                    (whether or not earned or declared) accrued and unpaid
                    thereon (including Additional Dividends) to the date of
                    final distribution, and no more. If upon any liquidation,
                    dissolution or winding up of the Corporation, the net assets
                    of the Corporation shall be insufficient to pay the holders
                    of all outstanding shares of Series A Junior Preferred Stock
                    and of any shares of stock ranking on a parity with the
                    Series A Junior Preferred Stock the full amounts to which
                    they respectively shall be entitled, such assets, or the
                    proceeds thereof, shall be distributed ratably among the
                    holders of the Series A Junior Preferred Stock and of any
                    shares of stock ranking on a parity with the Series A Junior
                    Preferred Stock. Holders of Series A Junior Preferred Stock
                    shall not be entitled, upon the liquidation, dissolution or
                    winding up of the Corporation, to receive any amounts with
                    respect to such stock other than the amounts referred to in
                    this Article IV.B(3)(a).

                         b. Neither the purchase nor redemption by the
                    Corporation of shares of any class of stock in any manner
                    permitted by the Certificate of Incorporation or any
                    amendment thereof, nor the merger or consolidation of the
                    Corporation with or into any other corporation or
                    corporations, nor a sale, transfer or lease of all or
                    substantially all of the Corporation's assets shall be
                    deemed to be a liquidation, dissolution or winding up of the
                    Corporation for the purposes of this Article IV.B(3);
                    provided, however, that any consolidation or merger of the
                    Corporation in which the Corporation is not the surviving
                    entity shall be deemed to be a liquidation, dissolution or
                    winding up of the affairs of the Corporation within the
                    meaning of this Article IV.B(3) if, (A) in connection
                    therewith, the holders of Common Stock of the Corporation
                    receive as consideration, whether in whole or in part, for
                    such Common Stock (1) cash, (2) notes, debentures or other
                    evidences of indebtedness or obligations to pay cash or (3)
                    preferred stock of the surviving entity (whether or not the
                    surviving entity is the Corporation) which ranks on a parity
                    with or senior to the preferred stock received by holders of
                    the Series A Junior Preferred Stock with respect to
                    liquidation or dividends or (B) the holders of the Series A
                    Junior Preferred Stock do not receive preferred stock of the
                    surviving entity with rights, powers and preferences equal
                    to (or more favorable to the holders than) the rights,
                    powers and preferences of the Series A Junior Preferred
                    Stock.

                                       -8-



                    4.   Redemption.

                         a. Mandatory Redemption. All outstanding shares of
                    Series A Junior Preferred Stock shall be redeemed from funds
                    legally available therefor on April 1, 2020 (the "Series A
                    Mandatory Redemption Date"), at a price per share equal to
                    $100 plus an amount per share equal to full cumulative
                    dividends (whether or not earned or declared) accrued and
                    unpaid thereon (including Additional Dividends) to the
                    Series A Mandatory Redemption Date.

                         b. Optional Redemption. The Series A Junior Preferred
                    Stock may be redeemed from funds legally available therefor,
                    in whole or in part, at the election of the Corporation,
                    expressed by resolution of the Board of Directors, at any
                    time and from time to time at a price per share equal to
                    $100 plus an amount per share equal to full cumulative
                    dividends (whether or not earned or declared) accrued and
                    unpaid thereon (including Additional Dividends) to the date
                    of redemption.

                         c. The aggregate amount of the redemption pursuant to
                    Article IV.B(4)(a) or (b) is hereinafter referred to as the
                    "Series A Junior Redemption Price" with respect to such
                    redemption. The Series A Mandatory Redemption Date and the
                    date of any redemption pursuant to Article IV.B(4)(b) are
                    each hereinafter referred to individually as a "Series A
                    Redemption Date."

                    5.   Redemption Procedure

                         a. A redemption pursuant to Article IV.B(4) shall be
                    accomplished in the manner and with the effect as set forth
                    in this Article IV.B(5).

                         b. Notice of the redemption of Series A Junior
                    Preferred Stock pursuant to Article IV.B(4) shall be given
                    by mail not less than ten (10) days prior to the Series A
                    Redemption Date. If less than all the outstanding shares of
                    Series A Junior Preferred Stock is to be redeemed, the
                    selection of shares for redemption shall be made pro rata
                    and the notice of redemption to a holder shall state the
                    number of shares of Series A Junior Preferred Stock of such
                    holder to be redeemed. The amount of the Series A Junior
                    Redemption Price shall be deposited on or before the Series
                    A Redemption Date in trust for the account of the holders of
                    shares of Series A Junior Preferred Stock entitled thereto
                    with a bank or trust company in good standing doing business
                    in the State of New York and having capital and surplus of
                    at least $100,000,000 (the date of

                                       -9-




                    such deposit being hereinafter in this Article IV.B(5)
                    referred to as the "date of deposit").

                         c. Notice of the date on which, and the name and
                    address of the bank or trust company with which, the deposit
                    has been or will be made shall be included in the notice of
                    redemption. On and after the Series A Redemption Date
                    (unless default shall be made by the Corporation in
                    providing money for the payment of the Series A Junior
                    Redemption Price pursuant to the notice of redemption), or
                    if the Corporation shall make such deposit on or before the
                    date specified therefor in the notice of redemption, then on
                    and after the date of deposit (provided notice of redemption
                    has been duly given), all dividends on the Series A Junior
                    Preferred Stock so called for redemption shall cease to
                    accrue and, notwithstanding that any certificate for shares
                    of Series A Junior Preferred Stock is not surrendered for
                    cancellation, the shares represented thereby shall no longer
                    be deemed outstanding and all rights of the holders thereof
                    as stockholders of the Corporation with respect to such
                    shares shall cease and terminate, except the right to
                    receive the Series A Junior Redemption Price as hereinafter
                    provided.

                         d. At any time on or after the Series A Redemption
                    Date, or if the Corporation shall deposit the money for such
                    redemption prior to the Series A Redemption Date, then at
                    any time on or after the date of deposit, which time shall
                    be specified by the Corporation in the notice of redemption
                    and which shall not be later than the Series A Redemption
                    Date, the holders of record of shares of Series A Junior
                    Preferred Stock to be redeemed shall be entitled to receive
                    the Series A Junior Redemption Price upon actual delivery to
                    the bank or trust company with which such deposit shall be
                    made of certificates for the shares to be redeemed, such
                    certificates, if required, to be duly endorsed in blank or
                    accompanied by proper instruments of assignment and transfer
                    duly endorsed in blank. The making of such deposit with any
                    such bank or trust company shall not relieve the Corporation
                    of liability for payment of the Series A Junior Redemption
                    Price.

                         e. Any money so deposited which shall remain unclaimed
                    by the holders of such shares of Series A Junior Preferred
                    Stock at the end of two (2) years after the Series A
                    Redemption Date shall be paid by such bank or trust company
                    to the Corporation, which shall thereafter, to the extent of
                    the money so repaid, be liable for the payment of the Series
                    A Junior Redemption Price. Any interest accrued on money so
                    deposited shall be paid to the Corporation from time to
                    time.

                                      -10-



                    6. Voting. Except as required by law and except for any
               voting by the holders of the Series A Junior Preferred Stock as
               part of a separate class or series pursuant to Article IV.B(7)
               hereunder or any other provision of the Corporation's Certificate
               of Incorporation, no holder of Series A Junior Preferred Stock,
               as such holder, shall be entitled to vote on any matter submitted
               to a vote of stockholders. On any matters on which the holders of
               the Series A Junior Preferred Stock shall be entitled to vote,
               they shall be entitled to one vote for each share held. Except as
               otherwise provided by law or as otherwise provided herein, the
               holders of shares of Series A Junior Preferred Stock shall not be
               entitled to notice of any meeting of stockholders.

                    7. Other Rights. Without the written consent of the holders
               of all of the outstanding shares of Series A Junior Preferred
               Stock or the vote of the holders of all of the outstanding shares
               of Series A Junior Preferred Stock at a meeting of the holders of
               Series A Junior Preferred Stock called for such purpose, the
               Corporation shall not amend, alter or repeal any provision of the
               Corporation's Certificate of Incorporation so as to adversely
               affect the rights and preferences of the Series A Junior
               Preferred Stock including any change to the dividend payable on
               the Series A Junior Preferred Stock; provided, further, that in
               no event will the issuance of any series of Preferred Stock that
               is senior to, on a parity with or junior to the Series A Junior
               Preferred Stock or has a redemption date earlier than the Series
               A Junior Preferred Stock be deemed to adversely affect the rights
               and preferences of the Series A Junior Preferred Stock.

                    8. Acknowledgement. Each holder of Series A Junior Preferred
               Stock, by acceptance thereof, acknowledges and agrees that
               payments of dividends, interest, premium and principal on, and
               redemption and repurchase of, such securities by the Corporation
               are subject to restrictions contained in certain credit and
               financing agreements of the Corporation.

                    9. Definitions

                         The following terms, when used in this Article IV.B,
                    shall have the meanings set forth below:

                         a. As used herein, the amount of dividends "accrued" on
                    any share of Series A Junior Preferred Stock as at any date
                    shall be calculated as the amount of any unpaid dividends
                    accumulated thereon to and including the last preceding
                    Dividend Accrual Date with respect to which dividends have
                    not been paid, whether or not earned or declared.

                                      -11-



                         b. "corporation" shall mean a corporation, partnership,
                    business trust, unincorporated organization, association,
                    limited liability company or joint stock company.

                         c. "Junior Stock" shall mean any series or class of the
                    capital stock of the Corporation now or hereafter authorized
                    or issued by the Corporation, including any series or class
                    of preferred stock, ranking junior to the Series A Junior
                    Preferred Stock with respect to dividends or distributions
                    or upon the liquidation, distribution of assets, dissolution
                    or winding-up of the Corporation, including without
                    limitation the Common Stock.

                         d. "person" shall mean an individual, a corporation,
                    partnership, trust, organization, association, government or
                    any department or agency thereof, or any other individual or
                    entity.

          C.   CLASS A AND CLASS B COMMON STOCK

               Except as otherwise provided herein, all shares of Class A and
          Class B Common Stock shall be identical and shall entitle the holders
          thereof to the same rights and privileges.

                    1. Dividends. Holders of Class A and Class B Common Stock
               shall be entitled to receive ratably such dividends as may be
               declared by the Board of Directors; provided that if dividends
               are declared which are payable in shares of Class A Common Stock
               or Class B Common Stock, dividends shall be declared which are
               payable at the same rate on each class of Common Stock and the
               dividends payable in shares of Class A Common Stock shall be
               payable to holders of Class A Common Stock and the dividends
               payable in shares of Class B Common Stock shall be payable to
               holders of Class B Common Stock.

                    2. Conversion. Upon the adoption of a resolution by the
               Board of Directors of Fabri-Steel Holdings Incorporated, a
               Delaware corporation ("Fabri-Steel"), authorizing Fabri-Steel or
               its Affiliates (as defined below) to conduct a High Yield
               Offering (as defined below), the Corporation, expressed by
               resolution of the Board of Directors, at any time and from time
               to time shall be entitled to convert any or all of any Class A
               Common Stock held by any party other than Fabri-Steel or its
               Affiliates into the same number of shares of Class B Common
               Stock. The Corporation, expressed by resolution of the Board of
               Directors, at any time and from time to time shall be entitled to
               convert any or all of any record holder's Class B Common Stock
               into the same number of shares of Class A Common Stock.

                                      -12-



                    Each conversion of shares of one class of Common Stock into
               shares of another class of Common Stock shall be effected
               immediately upon adoption of a resolution of the Board of
               Directors to that effect. Upon such conversion, the applicable
               record holder shall surrender the certificate or certificates
               representing the shares to be converted at the principal office
               of the Corporation. Such conversion shall be deemed to have been
               effected as of the close of business on the date on which the
               applicable resolution is adopted, whether or not the certificate
               or certificates have been surrendered, and at such time the
               rights of any such holder with respect to the converted class of
               Common Stock shall cease and the person or persons in whose name
               or names the certificate or certificates for shares of the other
               class of Common Stock are to be issued upon such conversion shall
               be deemed to have become the holder or holders of record of the
               shares of such other class of Common Stock represented thereby.

                    As used in this section IV.C(2), "Affiliate" means with
               respect to any person or entity, (i) a person or entity that is a
               member of the consolidated group of such person or entity for
               federal income tax purposes or (ii) a person or entity in which
               such person or entity owns, directly or indirectly through one or
               more intermediaries, more than fifty percent (50%) of the
               outstanding capital stock or equity of such person or entity.

                    As used in this section IV.C(2), "High Yield Offering" shall
               mean an issuance by Fabri-Steel of at least $75,000,000 in
               unsecured debt securities with a weighted average maturity of at
               least five (5) years pursuant to (i) a completed firm commitment
               public offering pursuant to an effective registration statement
               under the Securities Act of 1933, as amended, or (ii) a completed
               placement under Rule 144A promulgated under the Securities Act of
               1933, as amended.

                    3. Transfers. The Corporation shall not close its books
               against the transfer of any share of Common Stock, or of any
               share of Common Stock issued or issuable upon conversion of
               shares of the other class of Common Stock, in any manner that
               would interfere with the timely conversion of such shares of
               Common Stock.

                    4. Subdivision and Combinations of Shares. If the
               Corporation in any manner subdivides or combines the outstanding
               shares of any class of Common Stock, the outstanding shares of
               the other class of Common Stock shall be proportionately
               subdivided or combined.

                    5. Reservation of Shares for Conversion. So long as any
               shares of any class of Common Stock are outstanding, the
               Corporation shall at all times reserve and keep available out of
               its authorized but

                                      -13-



               unissued shares of Class A Common Stock and Class B Common Stock,
               the number of shares sufficient for issuance upon conversion.

                    6. Distribution of Assets. In the event of the voluntary or
               involuntary liquidation, dissolution or winding up of the
               Corporation (a "Distribution Event"), holders of Common Stock
               shall be entitled to receive all of the remaining assets of the
               Corporation available for distribution to its stockholders after
               all amounts to which the holders of Preferred Stock are entitled
               have been paid or set aside in cash for payment.

                    7. Voting Rights. The holders of Class A Common Stock shall
               have the general right to vote for all purposes, including the
               election of directors, as provided by law. Each holder of Class A
               Common Stock shall be entitled to one vote for each share thereof
               held. Except as otherwise required by law, the holders of Class B
               Common Stock shall have no voting rights.

                    8. Merger, etc. In connection with any merger,
               consolidation, or recapitalization in which holders of Class A
               Common Stock generally receive, or are given the opportunity to
               receive, consideration for their shares (a) all holders of Class
               B Common Stock shall be given the opportunity to receive the same
               form of consideration for their shares as is received by holders
               of Class A Common Stock and (b) holders of Class B Common Stock
               shall be entitled to receive the same amount of consideration per
               share as received by holders of Class A Common Stock. The
               aggregate number of shares of stock which the Corporation shall
               have authority to issue is one thousand (1,000) shares, all of
               which are of one class and are designated as Common Stock and
               each of which has a par value of one cent ($.01).

          5. Incorporator. The name and mailing address of the incorporator are
Mishael M. Azam, 4000 Bell Atlantic Tower, 1717 Arch Street, Philadelphia,
Pennsylvania 19103-2793.

          6. Bylaws. The board of directors of the Corporation is authorized to
adopt, amend or repeal the bylaws of the Corporation, except as otherwise
specifically provided therein.

          7. Elections of Directors. Elections of directors need not be by
written ballot unless the bylaws of the Corporation shall so provide.

          8. Right to Amend. The Corporation reserves the right to amend any
provision contained in this Certificate as the same may from time to time be in
effect in the manner now or hereafter prescribed by law, and all rights
conferred on stockholders or others hereunder are subject to such reservation.

                                      -14-



          9. Limitation on Liability. The directors of the Corporation shall be
entitled to the benefits of all limitations on the liability of directors
generally that are now or hereafter become available under the General
Corporation Law of Delaware. Without limiting the generality of the foregoing,
no director of the Corporation shall be liable to the Corporation or its
stockholders for monetary damages for breach of fiduciary duty as a director,
except for liability (i) for any breach of the director's duty of loyalty to the
Corporation or its stockholders, (ii) for acts or omissions not in good faith or
which involve intentional misconduct or a knowing violation of law, (iii) under
Section 174 of the Delaware General Corporation Law, or (iv) for any transaction
from which the director derived an improper personal benefit. Any repeal or
modification of this Section 9 shall be prospective only, and shall not affect,
to the detriment of any director, any limitation on the personal liability of a
director of the Corporation existing at the time of such repeal or modification.

          10. Miscellaneous. The Corporation elects not to be governed by
Section 203 of the Delaware General Corporation Law.

Dated: March    , 2000
             ---


                                        ----------------------------------------
                                        Rex A. Ogg
                                        Chairman, Vice President and Assistant
                                        Secretary

                                      -15-




                           CERTIFICATE OF DESIGNATION
                     OF 18% SERIES B SENIOR PREFERRED STOCK
                                       OF
                            NELSON STUD WELDING, INC.

          Nelson Stud Welding, Inc., a Delaware corporation (hereinafter called
the "Corporation"), pursuant to the provisions of Section 151 of the General
Corporation Law of the State of Delaware, does hereby make this Certificate of
Designation under the corporate seal of the Corporation and does hereby state
and certify that pursuant to the authority expressly vested in the Board of
Directors of the Corporation by the Certificate of Incorporation of the
Corporation (the "Certificate of Incorporation"), the Board of Directors has
duly adopted the following resolutions:

          RESOLVED, that, pursuant to Article IV of the Certificate of
Incorporation (which authorizes 1,045,000 shares of Preferred Stock, $.01 par
value per share, of which none is presently issued and outstanding), the Board
of Directors hereby fixes the designations and preferences and relative,
participating, optional and other special rights and qualifications, limitations
and restrictions of a series of Preferred Stock consisting of 150,000 shares to
be designated 18% Series B Cumulative Senior Preferred Stock.

18% SERIES B CUMULATIVE SENIOR PREFERRED STOCK

          RESOLVED, that each share of the 18% Series B Cumulative Senior
Preferred Stock shall rank equally in all respects and shall be subject to the
following provisions:

               1. Designation, Number of Shares. The second series of Preferred
               Stock shall be designated as the 18% Series B Cumulative Senior
               Preferred Stock ("Series B Senior Preferred Stock"), and the
               number of shares which shall constitute such series shall be
               150,000. The par value of the Series B Senior Preferred Stock
               shall be $.01 per share.

               2. Accrual and Payment of Dividends

                    a. The holders of Series B Senior Preferred Stock shall be
                    entitled to receive, when, as and if declared by the Board
                    of Directors, cumulative dividends at the rate of $18 per
                    share per annum.

                         Such dividends shall be payable in annual installments
                    in arrears commencing March 17, 2001 and thereafter on March
                    17 (unless such day is not a business day in which event on
                    the last preceding business day) in each such year
                    (hereinafter referred to as a "Dividend Accrual Date").



                         Each such dividend on Series B Senior Preferred Stock
                    when paid shall be payable to holders of record as they
                    appear on the stock books of the Corporation on the date
                    established by the Board of Directors of the Corporation as
                    the record date for the payment of such dividend (which
                    record date shall not precede the date upon which the
                    resolution fixing such record date is adopted and which
                    record date shall be not more than sixty days prior to such
                    action). If no record date is fixed, the record date for
                    determining holders for such purpose shall be at the close
                    of business on the date on which the Board of Directors
                    adopts the resolution relating to such dividend payment.
                    Dividends with respect to any shares of Series B Senior
                    Preferred Stock shall accrue (whether or not earned or
                    declared) from March 17, 2000.

                    b. Such dividends on the Series B Senior Preferred Stock
                    shall be cumulative, whether or not earned or declared, so
                    that if at any time full cumulative dividends at the rate
                    aforesaid on all shares of Series B Senior Preferred Stock
                    then outstanding to the end of the annual dividend period
                    next preceding such time shall not have been paid, the
                    amount of the deficiency shall be paid before any sum shall
                    be set aside for or applied by the Corporation to the
                    purchase, redemption or other acquisition for value of any
                    shares of Junior Stock (either pursuant to any applicable
                    sinking fund requirement or otherwise) or any dividend or
                    other distribution shall be paid or declared and set apart
                    for payment on any Junior Stock (other than a dividend
                    payable in Junior Stock); provided, however, that the
                    foregoing shall not prohibit the Corporation from
                    repurchasing shares of Junior Stock from a former employee
                    of the Corporation (or a subsidiary of the Corporation)
                    where such repurchase arises from the Corporation's option
                    to repurchase such shares upon termination of such
                    employee's employment with the Corporation (or a subsidiary)
                    pursuant to a written agreement between the Corporation and
                    such employee. Accrued dividends on the Series B Senior
                    Preferred Stock if not paid on the first or any subsequent
                    Dividend Accrual Date following accrual shall thereafter
                    accrue additional dividends in respect thereof (the
                    "Additional Dividends"), compounded annually, at the rate of
                    18% per annum.

                    c. The right to receive dividends on the Series B Senior
                    Preferred Stock shall rank on parity with that of any stock
                    ranking on a parity as to dividends with the Series B Senior
                    Preferred Stock, all dividends paid upon shares of Series B
                    Senior Preferred Stock and any other stock ranking on a
                    parity as to dividends with the Series B Senior Preferred
                    Stock shall be paid pro rata so that in all cases the amount
                    of dividends paid per share on the Series B Senior Preferred
                    Stock and such other stock shall bear the same

                                       -2-



                    ratio that accrued dividends per share on the shares of
                    Series B Senior Preferred Stock and such other stock bear to
                    each other. Except as provided in the preceding sentence,
                    unless full cumulative dividends on the Series B Senior
                    Preferred Stock have been paid, no dividends shall be
                    declared or paid or set aside for payment upon any other
                    stock of the Corporation ranking on a parity with the Series
                    B Senior Preferred Stock as to dividends.

                    d. An annual dividend period shall commence on the day
                    following a Dividend Accrual Date and shall end on the next
                    succeeding Dividend Accrual Date.

               3. Preference on Liquidation

                    a. In the event that the Corporation shall be liquidated,
                    dissolved or wound up, whether voluntarily or involuntarily,
                    after all creditors of the Corporation shall have been paid
                    in full, the holders of the Series B Senior Preferred Stock
                    shall be entitled to receive, out of the assets of the
                    Corporation legally available for distribution to its
                    stockholders, whether from capital, surplus or earnings,
                    before any amount shall be paid to the holders of any shares
                    of Junior Stock, an amount equal to $100 in cash per share
                    plus an amount equal to full cumulative dividends (whether
                    or not earned or declared) accrued and unpaid thereon
                    (including Additional Dividends) to the date of final
                    distribution, and no more. Series B Senior Preferred Stock
                    shall rank on parity with any other shares of stock on
                    parity with the Series B Senior Preferred Stock with respect
                    to receiving any amount as a result of a liquidation,
                    distribution of assets, dissolution or winding up of the
                    Corporation. If upon any liquidation, dissolution or winding
                    up of the Corporation, the net assets of the Corporation
                    shall be insufficient to pay the holders of all outstanding
                    shares of Series B Senior Preferred Stock and of any shares
                    of stock ranking on a parity with the Series B Senior
                    Preferred Stock the full amounts to which they respectively
                    shall be entitled, such assets, or the proceeds thereof,
                    shall be distributed ratably among the holders of the Series
                    B Senior Preferred Stock and of any shares of stock ranking
                    on a parity with the Series B Senior Preferred Stock.
                    Holders of Series B Senior Preferred Stock shall not be
                    entitled, upon the liquidation, dissolution or winding up of
                    the Corporation, to receive any amounts with respect to such
                    stock other than the amounts referred to in this Section
                    (3)(a).

                    b. Neither the purchase nor redemption by the Corporation of
                    shares of any class of stock in any manner permitted by the
                    Certificate of Incorporation or any amendment thereof, nor
                    the merger or consolidation of the Corporation with or into
                    any other

                                       -3-




                    corporation or corporations, nor a sale, transfer or lease
                    of all or substantially all of the Corporation's assets
                    shall be deemed to be a liquidation, dissolution or winding
                    up of the Corporation for the purposes of this Section (3);
                    provided, however, that any consolidation or merger of the
                    Corporation in which the Corporation is not the surviving
                    entity shall be deemed to be a liquidation, dissolution or
                    winding up of the affairs of the Corporation within the
                    meaning of this Section (3) if, (A) in connection therewith,
                    the holders of Common Stock of the Corporation receive as
                    consideration, whether in whole or in part, for such Common
                    Stock (1) cash, (2) notes, debentures or other evidences of
                    indebtedness or obligations to pay cash or (3) preferred
                    stock of the surviving entity (whether or not the surviving
                    entity is the Corporation) which ranks on a parity with or
                    senior to the preferred stock received by holders of the
                    Series B Senior Preferred Stock with respect to liquidation
                    or dividends or (B) the holders of the Series B Senior
                    Preferred Stock do not receive preferred stock of the
                    surviving entity with rights, powers and preferences equal
                    to (or more favorable to the holders than) the rights,
                    powers and preferences of the Series B Senior Preferred
                    Stock.

               4. Redemption.

                    a. Mandatory Redemption. All outstanding shares of the
                    Series B Senior Preferred Stock shall be redeemed from funds
                    legally available therefor on the Mandatory Redemption Date,
                    at a price per share equal to $100 plus an amount per share
                    equal to full cumulative dividends (whether or not earned or
                    declared) accrued and unpaid thereon (including Additional
                    Dividends) to the Mandatory Redemption Date. The holders of
                    the Series B Senior Preferred Stock shall be paid in full in
                    accordance with this Section 4(a) prior to any payment made
                    to the holders of any outstanding shares of the
                    Corporation's 12% Series A Cumulative Junior Preferred
                    Stock, par value $.01 per share (the "Series A Junior
                    Preferred Stock"),and any other of the Corporation's Junior
                    Stock, pursuant to the respective mandatory redemption terms
                    (if any) of such stock.

                    b. Optional Redemption. The Series B Senior Preferred Stock
                    may be redeemed from funds legally available therefor, in
                    whole or in part, at the election of the Corporation,
                    expressed by resolution of the Board of Directors, at any
                    time and from time to time at a price per share equal to
                    $100 plus an amount per share equal to full cumulative
                    dividends (whether or not earned or declared) accrued and
                    unpaid thereon (including any Additional

                                       -4-




                    Dividends) to the date of redemption (the "Optional
                    Redemption Date).

                    c. The aggregate amount of the redemption pursuant to
                    Section (4)(a) for a Mandatory Redemption or Section (4)(b)
                    for an Optional Redemption is hereinafter referred to as the
                    "Redemption Price" with respect to such redemption. As used
                    herein, "Mandatory Redemption Date" and "Optional Redemption
                    Date" shall hereinafter sometimes be referred to as the
                    "Redemption Date".

               5. Redemption Procedure

                    a. A redemption pursuant to Section (4) shall be
                    accomplished in the manner and with the effect as set forth
                    in this Section (5).

                    b. Notice of the redemption of Series B Senior Preferred
                    Stock pursuant to Section (4) shall be given by mail not
                    less than ten (10) days prior to the applicable Redemption
                    Date. If less than all the outstanding Series B Senior
                    Preferred Stock is to be redeemed, the selection of shares
                    for redemption shall be made pro rata and the notice of
                    redemption to a holder shall state the number of shares of
                    Series B Senior Preferred Stock of such holder to be
                    redeemed. The amount of the Redemption Price shall be
                    deposited on or before the Redemption Date in trust for the
                    account of the holders of Series B Senior Preferred Stock
                    entitled thereto with a bank or trust company in good
                    standing doing business in the State of New York and having
                    capital and surplus of at least $100,000,000 (the date of
                    such deposit being hereinafter in this Section (5) referred
                    to as the "date of deposit").

                    c. Notice of the date on which, and the name and address of
                    the bank or trust company with which, the deposit has been
                    or will be made shall be included in the notice of
                    redemption. On and after the applicable Redemption Date
                    (unless default shall be made by the Corporation in
                    providing money for the payment of the Redemption Price
                    pursuant to the notice of redemption), or if the Corporation
                    shall make such deposit on or before the date specified
                    therefor in the notice of redemption, then on and after the
                    date of deposit (provided notice of redemption has been duly
                    given), all dividends on the Series B Senior Preferred Stock
                    so called for redemption shall cease to accrue and,
                    notwithstanding that any certificate for shares of Series B
                    Senior Preferred Stock is not surrendered for cancellation,
                    the shares represented thereby shall no longer be deemed
                    outstanding and all rights of the holders thereof as
                    stockholders of the Corporation with respect to such

                                       -5-



                    shares shall cease and terminate, except the right to
                    receive the Redemption Price as hereinafter provided.

                    d. At any time on or after the applicable Redemption Date,
                    or if the Corporation shall deposit the money for such
                    redemption prior to the applicable Redemption Date, then at
                    any time on or after the date of deposit, which time shall
                    be specified by the Corporation in the notice of redemption
                    and which shall not be later than the applicable Redemption
                    Date, the holders of record of the Series B Senior Preferred
                    Stock to be redeemed shall be entitled to receive the
                    Redemption Price upon actual delivery to the bank or trust
                    company with which such deposit shall be made of
                    certificates for the shares to be redeemed, such
                    certificates, if required, to be duly endorsed in blank or
                    accompanied by proper instruments of assignment and transfer
                    duly endorsed in blank. The making of such deposit with any
                    such bank or trust company shall not relieve the Corporation
                    of liability for payment of the Redemption Price.

                    e. Any money so deposited which shall remain unclaimed by
                    the holders of such Series B Senior Preferred Stock at the
                    end of two (2) years after the applicable Redemption Date
                    shall be paid by such bank or trust company to the
                    Corporation, which shall thereafter, to the extent of the
                    money so repaid, be liable for the payment of the Redemption
                    Price. Any interest accrued on money so deposited shall be
                    paid to the Corporation from time to time.

               6. Voting. Except as required by law and except for any voting by
               the holders of the Series B Senior Preferred Stock as part of a
               separate class or series pursuant to Section (7) hereunder or any
               other provision of the Certificate of Incorporation, no holder of
               Series B Senior Preferred Stock, as such holder, shall be
               entitled to vote on any matter submitted to a vote of
               stockholders. On any matters on which the holders of the Series B
               Senior Preferred Stock shall be entitled to vote, they shall be
               entitled to one vote for each share held.

               7. Other Rights. Without the written consent of the holders of
               all of the outstanding shares of Series B Senior Preferred Stock
               or the vote of the holders of all of the outstanding shares of
               Series B Senior Preferred Stock at a meeting of the holders of
               Series B Senior Preferred Stock called for such purpose, the
               Corporation shall not amend, alter or repeal any provision of the
               Certificate of Incorporation so as to adversely affect the rights
               and preferences of the Series B Senior Preferred Stock including
               any change to the dividend payable on the Series B Senior
               Preferred Stock; provided, further, that in no event will the
               issuance of any series of Preferred Stock that is on a parity
               with or junior to the Series B Senior Preferred Stock or has a
               redemption date earlier than the Series B Senior

                                       -6-



               Preferred Stock be deemed to adversely affect the rights and
               preferences of the Series B Senior Preferred Stock.

               8. Acknowledgement. Each holder of Series B Senior Preferred
               Stock, by acceptance thereof, acknowledges and agrees that
               payments of dividends, interest, premium and principal on, and
               redemption and repurchase of, such securities by the Corporation
               are subject to restrictions contained in certain credit and
               financing agreements of the Corporation.

               9. Definitions

                    The following terms, when used herein, shall have the
                    meanings set forth below:

                    a. As used herein, the amount of dividends "accrued" on any
                    share of Series B Senior Preferred Stock at any date shall
                    be calculated as the amount of any unpaid dividends
                    accumulated thereon to and including the last preceding
                    Dividend Accrual Date with respect to which dividends have
                    not been paid, whether or not earned or declared.

                    b. "corporation" shall mean a corporation, partnership,
                    business trust, unincorporated organization, association,
                    limited liability company or joint stock company.

                    c. "Junior Stock" shall mean any series or class of the
                    capital stock of the Corporation now or hereafter authorized
                    or issued by the Corporation, including any series or class
                    of preferred stock, ranking junior to the Series B Senior
                    Preferred Stock with respect to dividends or distributions
                    or upon the liquidation, distribution of assets, dissolution
                    or winding-up of the Corporation, including without
                    limitation the Series A Junior Preferred Stock, the Class A
                    Common Stock of the Corporation, par value $.01 per share
                    and the Class B Common Stock of the Corporation, par value
                    $.01 per share.

                    d. "Mandatory Redemption Date" shall mean March 17, 2020.

                    e. "person" shall mean an individual, a corporation,
                    partnership, trust, organization, association, government or
                    any department or agency thereof, or any other individual or
                    entity.

                                       -7-



          IN WITNESS WHEREOF, Nelson Stud Welding, Inc. has caused this
Certificate of Designation to be signed by its Vice President, and attested by
its Secretary, this     day of March, 2000.
                    ---

ATTEST:                                 NELSON STUD WELDING, INC.


- ---------------------------             ----------------------------------------
Secretary                               Vice President

                                       -8-