
<TABLE> <S> <C>

<ARTICLE> 5
<RESTATED>
<MULTIPLIER> 1,000

<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                           8,027
<SECURITIES>                                         0
<RECEIVABLES>                                   46,483
<ALLOWANCES>                                        70
<INVENTORY>                                     49,067
<CURRENT-ASSETS>                               159,842
<PP&E>                                         346,196
<DEPRECIATION>                                 129,629
<TOTAL-ASSETS>                                 450,362
<CURRENT-LIABILITIES>                           36,868
<BONDS>                                         59,063
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        19,053
<OTHER-SE>                                     286,318
<TOTAL-LIABILITY-AND-EQUITY>                   450,362
<SALES>                                        147,612
<TOTAL-REVENUES>                               158,251
<CGS>                                          110,076
<TOTAL-COSTS>                                  110,076
<OTHER-EXPENSES>                                 5,333
<LOSS-PROVISION>                                    26
<INTEREST-EXPENSE>                                 471
<INCOME-PRETAX>                                 21,624
<INCOME-TAX>                                     8,325
<INCOME-CONTINUING>                             13,299
<DISCONTINUED>                                     408
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    13,707
<EPS-BASIC>                                       0.69
<EPS-DILUTED>                                     0.69


</TABLE>
