<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-END> JUN-30-1997 <CASH> 2,439,000 <SECURITIES> 0 <RECEIVABLES> 16,030,000 <ALLOWANCES> (460,000) <INVENTORY> 17,291,000 <CURRENT-ASSETS> 37,463,000 <PP&E> 100,282,000 <DEPRECIATION> (34,865,000) <TOTAL-ASSETS> 112,129,000 <CURRENT-LIABILITIES> 16,464,000 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 8,995,000 <OTHER-SE> 64,002,000 <TOTAL-LIABILITY-AND-EQUITY> 112,129,000 <SALES> 48,899,000 <TOTAL-REVENUES> 48,899,000 <CGS> 35,648,000 <TOTAL-COSTS> 44,879,000 <OTHER-EXPENSES> 24,000 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 1,009,000 <INCOME-PRETAX> 2,987,000 <INCOME-TAX> 1,061,000 <INCOME-CONTINUING> 1,926,000 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 1,926,000 <EPS-PRIMARY> 0.24 <EPS-DILUTED> 0