<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S BALANCE SHEET AND STATEMENT OF INCOME FOR THE PERIOD ENDED MARCH 31,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED> 
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               MAR-31-1997
<CASH>                                       1,222,778
<SECURITIES>                                 3,247,700
<RECEIVABLES>                                9,861,990
<ALLOWANCES>                                    34,736
<INVENTORY>                                  2,972,400
<CURRENT-ASSETS>                            17,604,840
<PP&E>                                      42,533,225
<DEPRECIATION>                              17,852,595
<TOTAL-ASSETS>                              54,421,884
<CURRENT-LIABILITIES>                        8,264,344
<BONDS>                                     29,514,000
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        95,148
<OTHER-SE>                                  16,065,291
<TOTAL-LIABILITY-AND-EQUITY>                54,421,884
<SALES>                                     16,373,035
<TOTAL-REVENUES>                            16,373,035
<CGS>                                       12,936,425
<TOTAL-COSTS>                               12,936,425
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             606,701
<INCOME-PRETAX>                              1,024,257
<INCOME-TAX>                                   419,945
<INCOME-CONTINUING>                            604,312
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   604,312
<EPS-PRIMARY>                                      .06
<EPS-DILUTED>                                      .06