<ARTICLE> 5 <MULTIPLIER> 1 <CURRENCY> U.S. DOLLARS <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> MAR-31-1997 <EXCHANGE-RATE> 1 <CASH> 0 <SECURITIES> 0 <RECEIVABLES> 16,355 <ALLOWANCES> (240) <INVENTORY> 10,447 <CURRENT-ASSETS> 27,329 <PP&E> 53,618 <DEPRECIATION> (21,429) <TOTAL-ASSETS> 59,629 <CURRENT-LIABILITIES> 8,182 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 146 <OTHER-SE> 49,093 <TOTAL-LIABILITY-AND-EQUITY> 59,629 <SALES> 20,319 <TOTAL-REVENUES> 20,319 <CGS> 13,838 <TOTAL-COSTS> 13,838 <OTHER-EXPENSES> 2,357 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 19 <INCOME-PRETAX> 4,105 <INCOME-TAX> 1,466 <INCOME-CONTINUING> 2,639 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 2,639 <EPS-PRIMARY> 0.18 <EPS-DILUTED> 0.18