<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> SEP-30-1998 <CASH> 1,490 <SECURITIES> 3,359 <RECEIVABLES> 34,202 <ALLOWANCES> (1,542) <INVENTORY> 20,206 <CURRENT-ASSETS> 64,884 <PP&E> 140,678 <DEPRECIATION> 61,386 <TOTAL-ASSETS> 177,662 <CURRENT-LIABILITIES> 47,039 <BONDS> 2,580 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 2,162 <OTHER-SE> 112,179 <TOTAL-LIABILITY-AND-EQUITY> 177,662 <SALES> 172,281 <TOTAL-REVENUES> 172,281 <CGS> 122,388 <TOTAL-COSTS> 122,388 <OTHER-EXPENSES> (67) <LOSS-PROVISION> (201) <INTEREST-EXPENSE> 547 <INCOME-PRETAX> 15,957 <INCOME-TAX> 5,403 <INCOME-CONTINUING> 10,554 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 10,554 <EPS-PRIMARY> 0.66 <EPS-DILUTED> 0.65