
<TABLE> <S> <C>

<ARTICLE> 5
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               MAR-31-1999
<CASH>                                           7,556
<SECURITIES>                                         0
<RECEIVABLES>                                   42,375
<ALLOWANCES>                                        63
<INVENTORY>                                     55,513
<CURRENT-ASSETS>                               156,809
<PP&E>                                         369,499
<DEPRECIATION>                                 145,454
<TOTAL-ASSETS>                                 434,619
<CURRENT-LIABILITIES>                           37,715
<BONDS>                                         62,025
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        18,310
<OTHER-SE>                                     267,183
<TOTAL-LIABILITY-AND-EQUITY>                   434,619
<SALES>                                         69,844
<TOTAL-REVENUES>                                71,976
<CGS>                                           50,350
<TOTAL-COSTS>                                   50,350
<OTHER-EXPENSES>                                 2,791
<LOSS-PROVISION>                                    91
<INTEREST-EXPENSE>                                 948
<INCOME-PRETAX>                                  7,486
<INCOME-TAX>                                     2,845
<INCOME-CONTINUING>                              4,641
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     4,641
<EPS-PRIMARY>                                     0.25
<EPS-DILUTED>                                     0.25
        

</TABLE>
