<ARTICLE> 5
<RESTATED> 
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               SEP-30-1996
<CASH>                                         103,572
<SECURITIES>                                         0
<RECEIVABLES>                                   93,690
<ALLOWANCES>                                     1,990
<INVENTORY>                                     64,797
<CURRENT-ASSETS>                               268,666
<PP&E>                                         538,609
<DEPRECIATION>                                 248,238
<TOTAL-ASSETS>                                 587,106
<CURRENT-LIABILITIES>                          191,009
<BONDS>                                         80,020
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         4,398
<OTHER-SE>                                     256,823
<TOTAL-LIABILITY-AND-EQUITY>                   587,106
<SALES>                                        735,167
<TOTAL-REVENUES>                               739,545
<CGS>                                          636,223
<TOTAL-COSTS>                                  636,223
<OTHER-EXPENSES>                                30,386
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              12,142
<INCOME-PRETAX>                                 51,302
<INCOME-TAX>                                    17,159
<INCOME-CONTINUING>                             34,143
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                (2,290)
<CHANGES>                                            0
<NET-INCOME>                                    31,853
<EPS-PRIMARY>                                     1.23<F1>
<EPS-DILUTED>                                     1.21<F1>
<FN>
<F1>Earnings per share have been restated to comply with SFAS No. 128. Earnings per
share is after a net extraordinary loss on extinguishment of debt of $0.09 per
basic and diluted share.
</FN>