<ARTICLE>                     5
<LEGEND>
    This schedule  contains  summary  financial  information  extracted from the
    financial  statements  included in the Company's Form 10-Q for the quarterly
    period ended September 30, 2000 and is qualified in its entirety by
    reference to such financial information.



<MULTIPLIER>                                   1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                              DEC-31-2000
<PERIOD-START>                                 JAN-01-2000
<PERIOD-END>                                   SEP-30-2000
<CASH>                                         41,600
<SECURITIES>                                        0
<RECEIVABLES>                                  67,800
<ALLOWANCES>                                        0
<INVENTORY>                                    41,600
<CURRENT-ASSETS>                              182,900
<PP&E>                                        505,200
<DEPRECIATION>                                269,500
<TOTAL-ASSETS>                                562,000
<CURRENT-LIABILITIES>                          78,100
<BONDS>                                       192,000
<PREFERRED-MANDATORY>                               0
<PREFERRED>                                         0
<COMMON>                                        4,300
<OTHER-SE>                                    215,100
<TOTAL-LIABILITY-AND-EQUITY>                  562,000
<SALES>                                       324,900
<TOTAL-REVENUES>                              324,900
<CGS>                                         243,900
<TOTAL-COSTS>                                 243,900
<OTHER-EXPENSES>                                    0
<LOSS-PROVISION>                                    0
<INTEREST-EXPENSE>                              9,600
<INCOME-PRETAX>                                20,300
<INCOME-TAX>                                    6,200
<INCOME-CONTINUING>                            14,700
<DISCONTINUED>                                      0
<EXTRAORDINARY>                                     0
<CHANGES>                                           0
<NET-INCOME>                                   14,700
<EPS-BASIC>                                      1.02
<EPS-DILUTED>                                    1.02