<ARTICLE>                 5
<LEGEND>                  This schedule contains summary financial
                          information extracted from Form 10-Q for
                          the period ended June 30, 1997 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-END>              JUN-30-1997
<CASH>                                           22,883
<SECURITIES>                                          0
<RECEIVABLES>                                   131,712
<ALLOWANCES>                                      4,578
<INVENTORY>                                      41,560
<CURRENT-ASSETS>                                206,746
<PP&E>                                          429,600
<DEPRECIATION>                                  187,890
<TOTAL-ASSETS>                                  483,869
<CURRENT-LIABILITIES>                           153,020
<BONDS>                                         208,615
<PREFERRED-MANDATORY>                                 0
<PREFERRED>                                           0
<COMMON>                                            223
<OTHER-SE>                                     (119,586)
<TOTAL-LIABILITY-AND-EQUITY>                    485,137
<SALES>                                         314,523
<TOTAL-REVENUES>                                314,523
<CGS>                                           214,679
<TOTAL-COSTS>                                   214,679
<OTHER-EXPENSES>                                      0
<LOSS-PROVISION>                                      0
<INTEREST-EXPENSE>                               10,350
<INCOME-PRETAX>                                  47,645
<INCOME-TAX>                                     18,673
<INCOME-CONTINUING>                              28,872
<DISCONTINUED>                                        0
<EXTRAORDINARY>                                       0
<CHANGES>                                             0
<NET-INCOME>                                     28,972
<EPS-PRIMARY>                                      1.27
<EPS-DILUTED>                                      1.26