<ARTICLE> 5 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> MAR-31-1998 <CASH> 702,261 <SECURITIES> 19,472 <RECEIVABLES> 2,616,279 <ALLOWANCES> 22,934 <INVENTORY> 2,988,166 <CURRENT-ASSETS> 6,485,274 <PP&E> 9,793,378 <DEPRECIATION> 5,233,465 <TOTAL-ASSETS> 11,192,875 <CURRENT-LIABILITIES> 1,694,607 <BONDS> 741,160 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 4,457,281 <OTHER-SE> 4,294,401 <TOTAL-LIABILITY-AND-EQUITY> 11,192,875 <SALES> 7,353,290 <TOTAL-REVENUES> 7,406,314 <CGS> 6,212,139 <TOTAL-COSTS> 565,440 <OTHER-EXPENSES> 3,086 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 15,427 <INCOME-PRETAX> 611,207 <INCOME-TAX> 243,000 <INCOME-CONTINUING> 368,207 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 368,207 <EPS-PRIMARY> .13 <EPS-DILUTED> .13