<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 MARCH
31, 2000 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>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               MAR-31-2000
<CASH>                                           7,200
<SECURITIES>                                         0
<RECEIVABLES>                                  215,500
<ALLOWANCES>                                         0
<INVENTORY>                                    149,500
<CURRENT-ASSETS>                               399,400
<PP&E>                                         856,600
<DEPRECIATION>                                 534,400
<TOTAL-ASSETS>                                 800,900
<CURRENT-LIABILITIES>                          231,300
<BONDS>                                         75,100
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        22,200
<OTHER-SE>                                     428,800
<TOTAL-LIABILITY-AND-EQUITY>                   800,900
<SALES>                                        220,700
<TOTAL-REVENUES>                               220,700
<CGS>                                          157,600
<TOTAL-COSTS>                                  157,600
<OTHER-EXPENSES>                                43,000
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               2,600
<INCOME-PRETAX>                                 19,500
<INCOME-TAX>                                     6,600
<INCOME-CONTINUING>                             12,900
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    12,900
<EPS-BASIC>                                       0.57
<EPS-DILUTED>                                     0.57