EXHIBIT 27


                          EXHIBIT 27


                                  

<ARTICLE>                                      5
<PERIOD-TYPE>                              6-MOS
<FISCAL-YEAR-END>                    DEC-31-2000
<PERIOD-END>                         JUN-30-2000
<CASH>                                17,490,728
<SECURITIES>                                   0
<RECEIVABLES>                         47,748,460
<ALLOWANCES>                             368,738
<INVENTORY>                           47,638,388
<CURRENT-ASSETS>                     117,175,476
<PP&E>                               174,137,853
<DEPRECIATION>                        83,420,668
<TOTAL-ASSETS>                       236,119,454
<CURRENT-LIABILITIES>                 34,483,737
<BONDS>                               14,661,000
<PREFERRED-MANDATORY>                          0
<PREFERRED>                                    0
<COMMON>                               9,602,621
<OTHER-SE>                           147,999,992
<TOTAL-LIABILITY-AND-EQUITY>         236,119,454
<SALES>                              116,263,743
<TOTAL-REVENUES>                     116,529,471
<CGS>                                 84,414,559
<TOTAL-COSTS>                        103,688,621
<OTHER-EXPENSES>                               0
<LOSS-PROVISION>                               0
<INTEREST-EXPENSE>                       435,877
<INCOME-PRETAX>                       12,404,973
<INCOME-TAX>                           4,208,000
<INCOME-CONTINUING>                    8,196,973
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                           8,196,973
<EPS-BASIC>                               0.85
<EPS-DILUTED>                               0.85