<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONDENSED CONSOLIDATED BALANCE SHEET AS OF MARCH 31, 1997, AND THE RELATED
CONDENSED CONSOLIDATED STATEMENT OF EARNINGS FOR THE THREE MONTHS THEN ENDED, 
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH QUARTERLY REPORT ON 
FORM 10-Q FOR THE QUARTERLY PERIOD ENDED MARCH 31, 1997.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               MAR-31-1997
<CASH>                                           8,424
<SECURITIES>                                         0
<RECEIVABLES>                                  111,450
<ALLOWANCES>                                     2,992
<INVENTORY>                                    118,281
<CURRENT-ASSETS>                               257,482
<PP&E>                                         998,771
<DEPRECIATION>                                 585,726
<TOTAL-ASSETS>                                 762,741
<CURRENT-LIABILITIES>                           74,318
<BONDS>                                        125,836
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           461
<OTHER-SE>                                     483,900
<TOTAL-LIABILITY-AND-EQUITY>                   762,741
<SALES>                                        158,163
<TOTAL-REVENUES>                               158,163
<CGS>                                          128,019
<TOTAL-COSTS>                                  143,810
<OTHER-EXPENSES>                                (1,511)
<LOSS-PROVISION>                                    42
<INTEREST-EXPENSE>                               2,201
<INCOME-PRETAX>                                 13,621
<INCOME-TAX>                                     4,714
<INCOME-CONTINUING>                              8,907
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     8,907
<EPS-PRIMARY>                                     0.19
<EPS-DILUTED>                                     0.19<F1>
<FN>
<F1>Financial Data Schedule restated to reflect adoption of SFAS No. 128. 
Earnings per share amounts have been restated, where appropriate, to comply 
with the SFAS No. 128.
</FN>