<ARTICLE> 5 <PERIOD-TYPE> 12-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> DEC-31-1997 <CASH> 1,070,485 <SECURITIES> 19,471 <RECEIVABLES> 3,112,520 <ALLOWANCES> 0 <INVENTORY> 2,679,118 <CURRENT-ASSETS> 6,927,055 <PP&E> 9,570,203 <DEPRECIATION> 5,102,682 <TOTAL-ASSETS> 11,539,058 <CURRENT-LIABILITIES> 2,252,893 <BONDS> 743,275 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 4,422,647 <OTHER-SE> 4,012,491 <TOTAL-LIABILITY-AND-EQUITY> 11,539,058 <SALES> 30,966,339 <TOTAL-REVENUES> 21,245,596 <CGS> 27,103,198 <TOTAL-COSTS> 2,066,173 <OTHER-EXPENSES> 13,070 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 75,986 <INCOME-PRETAX> 2,018,395 <INCOME-TAX> 763,776 <INCOME-CONTINUING> 1,254,619 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 1,254,619 <EPS-PRIMARY> .44 <EPS-DILUTED> .44