<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS CONTAINED IN THE BODY OF THE ACCOMPANYING
FORM 10-Q AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>                                     1,000

                                     
<PERIOD-TYPE>                                    6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-END>                               JUN-30-1999
<CASH>                                           6,128
<SECURITIES>                                     3,192
<RECEIVABLES>                                   35,406
<ALLOWANCES>                                         0
<INVENTORY>                                     39,657
<CURRENT-ASSETS>                               100,763
<PP&E>                                         119,017
<DEPRECIATION>                                  85,697
<TOTAL-ASSETS>                                 191,616
<CURRENT-LIABILITIES>                           46,316
<BONDS>                                          4,115
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        14,374
<OTHER-SE>                                      96,502
<TOTAL-LIABILITY-AND-EQUITY>                   191,616
<SALES>                                        101,102
<TOTAL-REVENUES>                               102,188
<CGS>                                           71,942
<TOTAL-COSTS>                                   95,618
<OTHER-EXPENSES>                                 1,343
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  24
<INCOME-PRETAX>                                  5,203
<INCOME-TAX>                                     1,465
<INCOME-CONTINUING>                              3,738
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     3,738
<EPS-BASIC>                                      .30
<EPS-DILUTED>                                      .30