<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> MAR-31-1997 <CASH> 24,055 <SECURITIES> 4,943 <RECEIVABLES> 34,339 <ALLOWANCES> (1,647) <INVENTORY> 15,832 <CURRENT-ASSETS> 82,669 <PP&E> 118,643 <DEPRECIATION> 52,855 <TOTAL-ASSETS> 171,632 <CURRENT-LIABILITIES> 34,637 <BONDS> 8,250 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 2,123 <OTHER-SE> 114,135 <TOTAL-LIABILITY-AND-EQUITY> 171,632 <SALES> 61,971 <TOTAL-REVENUES> 61,971 <CGS> 42,708 <TOTAL-COSTS> 42,708 <OTHER-EXPENSES> (250) <LOSS-PROVISION> (162) <INTEREST-EXPENSE> 158 <INCOME-PRETAX> 9,017 <INCOME-TAX> 3,392 <INCOME-CONTINUING> 5,625 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 5,625 <EPS-PRIMARY> 0.33 <EPS-DILUTED> 0.32