<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-28-1997 <PERIOD-START> DEC-30-1996 <PERIOD-END> JUN-29-1997 <CASH> 224,640 <SECURITIES> 0 <RECEIVABLES> 15,956,876 <ALLOWANCES> 0 <INVENTORY> 1,387,083 <CURRENT-ASSETS> 22,271,756 <PP&E> 52,026,539 <DEPRECIATION> 34,442,409 <TOTAL-ASSETS> 43,388,053 <CURRENT-LIABILITIES> 8,056,520 <BONDS> 8,223,557 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 158,355 <OTHER-SE> 26,398,336 <TOTAL-LIABILITY-AND-EQUITY> 43,388,053 <SALES> 31,123,105 <TOTAL-REVENUES> 31,123,105 <CGS> 26,272,501 <TOTAL-COSTS> 26,272,501 <OTHER-EXPENSES> 4,071,118 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 162,648 <INCOME-PRETAX> 661,426 <INCOME-TAX> 204,795 <INCOME-CONTINUING> 456,631 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 456,631 <EPS-PRIMARY> .16 <EPS-DILUTED> .16