<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE BALANCE
SHEET AS OF MARCH 31, 1998, AND STATEMENTS OF OPERATIONS FOR THE QUARTER ENDED
MARCH 31, 1998, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
       
                           
<PERIOD-TYPE>                 3-MOS
<FISCAL-YEAR-END>             DEC-31-1998
<PERIOD-START>                JAN-01-1998
<PERIOD-END>                  MAR-31-1998
<CASH>                        1,253,863
<SECURITIES>                  0
<RECEIVABLES>                 3,961,065
<ALLOWANCES>                  (84,818)
<INVENTORY>                   5,402,871
<CURRENT-ASSETS>              12,040,939
<PP&E>                        21,339,095
<DEPRECIATION>                (8,555,388)
<TOTAL-ASSETS>                31,013,677
<CURRENT-LIABILITIES>         7,109,113
<BONDS>                       0
<COMMON>                      0
<PREFERRED-MANDATORY>         0
<PREFERRED>                   83,050
<OTHER-SE>                    23,331,525
<TOTAL-LIABILITY-AND-EQUITY>  31,013,677
<SALES>                       6,374,538
<TOTAL-REVENUES>              6,374,538
<CGS>                         3,186,521
<TOTAL-COSTS>                 1,819,212
<OTHER-EXPENSES>              (456,199)
<LOSS-PROVISION>              0
<INTEREST-EXPENSE>            0
<INCOME-PRETAX>               1,825,004
<INCOME-TAX>                  666,126
<INCOME-CONTINUING>           1,158,878
<DISCONTINUED>                0
<EXTRAORDINARY>               0
<CHANGES>                     0
<NET-INCOME>                  1,158,878
<EPS-PRIMARY>                 0.14
<EPS-DILUTED>                 0.14