<ARTICLE> 5 <RESTATED> <MULTIPLIER> 1,000 <PERIOD-TYPE> 12-MOS <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-START> JAN-01-1996 <PERIOD-END> DEC-31-1996 <CASH> 31,749 <SECURITIES> 0 <RECEIVABLES> 52,211 <ALLOWANCES> 954 <INVENTORY> 96,324 <CURRENT-ASSETS> 197,233 <PP&E> 404,127 <DEPRECIATION> 273,907 <TOTAL-ASSETS> 355,779 <CURRENT-LIABILITIES> 69,061 <BONDS> 18,860 <COMMON> 21,909 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 197,348 <TOTAL-LIABILITY-AND-EQUITY> 355,779 <SALES> 376,279 <TOTAL-REVENUES> 376,279 <CGS> 267,713 <TOTAL-COSTS> 341,013 <OTHER-EXPENSES> 896 <LOSS-PROVISION> 65 <INTEREST-EXPENSE> 1,128 <INCOME-PRETAX> 33,177 <INCOME-TAX> 8,686 <INCOME-CONTINUING> 24,491 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 24,491 <EPS-PRIMARY> $1.52 <EPS-DILUTED> $1.52