<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
Financial Statements contained in Item 1 of Form 10-Q for the period ended
September 30, 1999 and is qualified in its entirety by reference to such
financial statements.
Figures are rounded to the nearest 100,000 (except EPS).
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                        DEC-31-1999
<PERIOD-START>                           JAN-01-1999
<PERIOD-END>                             SEP-30-1999
<CASH>                                         19,200
<SECURITIES>                                        0
<RECEIVABLES>                                 201,200
<ALLOWANCES>                                        0
<INVENTORY>                                   128,800
<CURRENT-ASSETS>                              376,800
<PP&E>                                        863,000
<DEPRECIATION>                                542,100
<TOTAL-ASSETS>                                777,700
<CURRENT-LIABILITIES>                         202,100
<BONDS>                                        81,500
<PREFERRED-MANDATORY>                               0
<PREFERRED>                                         0
<COMMON>                                       23,000
<OTHER-SE>                                    423,600
<TOTAL-LIABILITY-AND-EQUITY>                  777,700
<SALES>                                       694,800
<TOTAL-REVENUES>                              694,800
<CGS>                                         499,100
<TOTAL-COSTS>                                 499,100
<OTHER-EXPENSES>                              137,700
<LOSS-PROVISION>                                    0
<INTEREST-EXPENSE>                              4,100
<INCOME-PRETAX>                                58,400
<INCOME-TAX>                                   19,900
<INCOME-CONTINUING>                            38,500
<DISCONTINUED>                                      0
<EXTRAORDINARY>                                     0
<CHANGES>                                           0
<NET-INCOME>                                   38,500
<EPS-BASIC>                                      1.67
<EPS-DILUTED>                                    1.67