<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>