<ARTICLE> 5

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                          22,954
<SECURITIES>                                         0
<RECEIVABLES>                                   77,709
<ALLOWANCES>                                       914
<INVENTORY>                                     98,699
<CURRENT-ASSETS>                               223,697
<PP&E>                                         445,065
<DEPRECIATION>                                 174,365
<TOTAL-ASSETS>                                 628,146
<CURRENT-LIABILITIES>                           78,382
<BONDS>                                        193,165
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         2,664
<OTHER-SE>                                     278,575
<TOTAL-LIABILITY-AND-EQUITY>                   628,146
<SALES>                                        237,646
<TOTAL-REVENUES>                               240,054
<CGS>                                          156,692
<TOTAL-COSTS>                                   46,197
<OTHER-EXPENSES>                                   168
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               4,227
<INCOME-PRETAX>                                 32,770
<INCOME-TAX>                                    10,665
<INCOME-CONTINUING>                             22,105
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    22,105
<EPS-BASIC>                                       0.90
<EPS-DILUTED>                                     0.87