<ARTICLE> 5 <LEGEND> This schedule contains summary financial information extracted from the Financial Statements contained in Item 1 of Form 10-Q for the period ended September 30, 1999 and is qualified in its entirety by reference to such financial statements. Figures are rounded to the nearest 100,000 (except EPS). </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> SEP-30-1999 <CASH> 19,200 <SECURITIES> 0 <RECEIVABLES> 201,200 <ALLOWANCES> 0 <INVENTORY> 128,800 <CURRENT-ASSETS> 376,800 <PP&E> 863,000 <DEPRECIATION> 542,100 <TOTAL-ASSETS> 777,700 <CURRENT-LIABILITIES> 202,100 <BONDS> 81,500 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 23,000 <OTHER-SE> 423,600 <TOTAL-LIABILITY-AND-EQUITY> 777,700 <SALES> 694,800 <TOTAL-REVENUES> 694,800 <CGS> 499,100 <TOTAL-COSTS> 499,100 <OTHER-EXPENSES> 137,700 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 4,100 <INCOME-PRETAX> 58,400 <INCOME-TAX> 19,900 <INCOME-CONTINUING> 38,500 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 38,500 <EPS-BASIC> 1.67 <EPS-DILUTED> 1.67