<TABLE> <S> <C>

<ARTICLE> 5
<MULTIPLIER> 1,000
       
<S>                                                                             <C>
<PERIOD-TYPE>                                                                   3-MOS
<FISCAL-YEAR-END>                                                                                        Dec-31-1997
<PERIOD-END>                                                                                             Mar-31-1997
<CASH>                                                                                                        44,198
<SECURITIES>                                                                                                       0
<RECEIVABLES>                                                                                                 21,564
<ALLOWANCES>                                                                                                     516
<INVENTORY>                                                                                                   18,294
<CURRENT-ASSETS>                                                                                              86,783
<PP&E>                                                                                                        69,539
<DEPRECIATION>                                                                                                42,466
<TOTAL-ASSETS>                                                                                               121,231
<CURRENT-LIABILITIES>                                                                                         22,342
<BONDS>                                                                                                            0
<PREFERRED-MANDATORY>                                                                                              0
<PREFERRED>                                                                                                        0
<COMMON>                                                                                                       3,817
<OTHER-SE>                                                                                                    93,671
<TOTAL-LIABILITY-AND-EQUITY>                                                                                 121,231
<SALES>                                                                                                       52,967
<TOTAL-REVENUES>                                                                                              53,335
<CGS>                                                                                                         41,785
<TOTAL-COSTS>                                                                                                 47,682
<OTHER-EXPENSES>                                                                                                   0
<LOSS-PROVISION>                                                                                                   0
<INTEREST-EXPENSE>                                                                                                 0
<INCOME-PRETAX>                                                                                                5,653
<INCOME-TAX>                                                                                                   2,050
<INCOME-CONTINUING>                                                                                            3,603
<DISCONTINUED>                                                                                                     0
<EXTRAORDINARY>                                                                                                    0
<CHANGES>                                                                                                          0
<NET-INCOME>                                                                                                   3,603
<EPS-PRIMARY>                                                                                                    .95
<EPS-DILUTED>                                                                                                    .95
        

</TABLE>