
<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5

<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                         2099876
<SECURITIES>                                         0
<RECEIVABLES>                                 18081949
<ALLOWANCES>                                    244866
<INVENTORY>                                   13779015
<CURRENT-ASSETS>                              37406895
<PP&E>                                        62522232
<DEPRECIATION>                                35634924
<TOTAL-ASSETS>                                68786738
<CURRENT-LIABILITIES>                         15036140
<BONDS>                                       15000000
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       1102580
<OTHER-SE>                                    20711516
<TOTAL-LIABILITY-AND-EQUITY>                  68786738
<SALES>                                      122358592
<TOTAL-REVENUES>                             122358592
<CGS>                                         64006688
<TOTAL-COSTS>                                115388160
<OTHER-EXPENSES>                               1452177
<LOSS-PROVISION>                                128006
<INTEREST-EXPENSE>                             1194986
<INCOME-PRETAX>                                5618521
<INCOME-TAX>                                   2592935
<INCOME-CONTINUING>                            2925320
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   2925320
<EPS-PRIMARY>                                     8.11
<EPS-DILUTED>                                     8.11


</TABLE>
