<ARTICLE> 5
<RESTATED> 
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                           8,400
<SECURITIES>                                         0
<RECEIVABLES>                                   77,700
<ALLOWANCES>                                     1,400
<INVENTORY>                                     87,300
<CURRENT-ASSETS>                               181,800
<PP&E>                                         718,300
<DEPRECIATION>                                 304,500
<TOTAL-ASSETS>                                 627,800
<CURRENT-LIABILITIES>                          107,500
<BONDS>                                        115,300
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         4,400
<OTHER-SE>                                     328,600
<TOTAL-LIABILITY-AND-EQUITY>                   627,800
<SALES>                                        937,900
<TOTAL-REVENUES>                               943,400
<CGS>                                          825,000
<TOTAL-COSTS>                                  825,000
<OTHER-EXPENSES>                                46,400
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               8,300<F1>
<INCOME-PRETAX>                                 49,100
<INCOME-TAX>                                    18,400
<INCOME-CONTINUING>                             30,700
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    30,700
<EPS-PRIMARY>                                     1.16
<EPS-DILUTED>                                     1.14
<FN>
<F1>CERTAIN RECLASSIFICATIONS HAVE BEEN MADE TO INFORMATION PREVIOUSLY 
REPORTED TO CONFORM TO CURRENT PRESENTATION.
</FN>