<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEETS AND CONSOLIDATED STATEMENTS OF EARNINGS INCLUDED
HEREIN AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<MULTIPLIER>                    1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                           7,614
<SECURITIES>                                         0
<RECEIVABLES>                                   87,837
<ALLOWANCES>                                     1,919
<INVENTORY>                                     67,913
<CURRENT-ASSETS>                               164,169
<PP&E>                                         371,034
<DEPRECIATION>                                 156,779
<TOTAL-ASSETS>                                 501,361
<CURRENT-LIABILITIES>                          101,498
<BONDS>                                        161,694
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           214
<OTHER-SE>                                     204,881
<TOTAL-LIABILITY-AND-EQUITY>                   501,361
<SALES>                                        433,279
<TOTAL-REVENUES>                               433,279
<CGS>                                          370,089
<TOTAL-COSTS>                                  370,089
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               5,281
<INCOME-PRETAX>                                 21,064
<INCOME-TAX>                                     8,750
<INCOME-CONTINUING>                             12,314
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    12,314
<EPS-PRIMARY>                                      .60
<EPS-DILUTED>                                      .60