
<TABLE> <S> <C>

<ARTICLE> 5
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             APR-01-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                          22,273
<SECURITIES>                                         0
<RECEIVABLES>                                   73,081
<ALLOWANCES>                                       696
<INVENTORY>                                     63,400
<CURRENT-ASSETS>                               166,316
<PP&E>                                         315,789
<DEPRECIATION>                                 131,394
<TOTAL-ASSETS>                                 408,808
<CURRENT-LIABILITIES>                           64,852
<BONDS>                                          1,764
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        20,330
<OTHER-SE>                                     291,278
<TOTAL-LIABILITY-AND-EQUITY>                   408,808
<SALES>                                        111,179
<TOTAL-REVENUES>                               112,488
<CGS>                                           85,611
<TOTAL-COSTS>                                   85,611
<OTHER-EXPENSES>                                 1,098
<LOSS-PROVISION>                                   600
<INTEREST-EXPENSE>                                 142
<INCOME-PRETAX>                                 10,110
<INCOME-TAX>                                     3,992
<INCOME-CONTINUING>                              7,875
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     7,875
<EPS-PRIMARY>                                     0.38
<EPS-DILUTED>                                     0.00
        

</TABLE>
