<ARTICLE>                      5
<LEGEND>
Note - EPS information has been prepared in accordance with Statement of
Financial Accounting Standard No. 128, and basic and diluted EPS have been
entered in place of primary and fully diluted, respectively.
</LEGEND>
<MULTIPLIER>                   1000
       
                                                 
<PERIOD-TYPE>                                             6-MOS
<FISCAL-YEAR-END>                                   DEC-31-1998
<PERIOD-END>                                        JUN-30-1998
<CASH>                                                    57533
<SECURITIES>                                                  0
<RECEIVABLES>                                             55033
<ALLOWANCES>                                                  0
<INVENTORY>                                               53810
<CURRENT-ASSETS>                                         174202
<PP&E>                                                   113317
<DEPRECIATION>                                            53080
<TOTAL-ASSETS>                                           272472
<CURRENT-LIABILITIES>                                     77832
<BONDS>                                                   28590
<COMMON>                                                   2023
<PREFERRED-MANDATORY>                                         0
<PREFERRED>                                                   0
<OTHER-SE>                                               157277
<TOTAL-LIABILITY-AND-EQUITY>                             272472
<SALES>                                                  215636
<TOTAL-REVENUES>                                         215636
<CGS>                                                    146335
<TOTAL-COSTS>                                            146335
<OTHER-EXPENSES>                                              0
<LOSS-PROVISION>                                              0
<INTEREST-EXPENSE>                                          355
<INCOME-PRETAX>                                           28766
<INCOME-TAX>                                              10975
<INCOME-CONTINUING>                                       17791
<DISCONTINUED>                                                0
<EXTRAORDINARY>                                               0
<CHANGES>                                                     0
<NET-INCOME>                                              17791
<EPS-PRIMARY>                                              1.11
<EPS-DILUTED>                                              1.10