<ARTICLE> 5 <MULTIPLIER> 1,000 <CURRENCY> U.S. DOLLARS <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-2000 <PERIOD-START> JAN-01-2000 <PERIOD-END> MAR-31-2000 <EXCHANGE-RATE> 1.0 <CASH> 29,935 <SECURITIES> 0 <RECEIVABLES> 16,539 <ALLOWANCES> 0 <INVENTORY> 17,211 <CURRENT-ASSETS> 11,315 <PP&E> 77,510 <DEPRECIATION> (37,571) <TOTAL-ASSETS> 132,571 <CURRENT-LIABILITIES> 42,632 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 6,915 <OTHER-SE> 69,752 <TOTAL-LIABILITY-AND-EQUITY> 132,571 <SALES> 44,010 <TOTAL-REVENUES> 44,010 <CGS> 35,088 <TOTAL-COSTS> 45,127 <OTHER-EXPENSES> (17,150) <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 201 <INCOME-PRETAX> 366 <INCOME-TAX> 6,412 <INCOME-CONTINUING> 9,841 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 9,841 <EPS-BASIC> 1.75 <EPS-DILUTED> 1.74