<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<RESTATED>
<MULTIPLIER> 1,000

<S>                             <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   3-MOS                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997             DEC-31-1997
<PERIOD-START>                             JAN-01-1997             APR-01-1997             JUL-01-1997
<PERIOD-END>                               MAR-31-1997             JUN-30-1997             SEP-30-1997
<CASH>                                           8,185                   5,627                   6,584
<SECURITIES>                                         0                       0                       0
<RECEIVABLES>                                   26,838                  26,668                  27,112
<ALLOWANCES>                                     1,058                   1,017                   1,027
<INVENTORY>                                     31,096                  32,998                  31,551
<CURRENT-ASSETS>                                68,895                  68,264                  68,088
<PP&E>                                          67,945                  69,821                  72,388
<DEPRECIATION>                                  10,465                  11,842                  13,314
<TOTAL-ASSETS>                                 157,804                 157,219                 157,720
<CURRENT-LIABILITIES>                           26,268                  25,350                  26,178
<BONDS>                                        115,117                 115,117                 115,117
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                       0                       0
<COMMON>                                         3,124                   3,124                   3,124
<OTHER-SE>                                       7,384                   7,717                   7,390
<TOTAL-LIABILITY-AND-EQUITY>                   157,804                 157,219                 157,720
<SALES>                                         57,153                  60,243                  55,359
<TOTAL-REVENUES>                                57,153                  60,243                  55,359
<CGS>                                           49,821                  50,601                  48,138
<TOTAL-COSTS>                                   55,127                  56,403                  53,495
<OTHER-EXPENSES>                                  (16)                     (4)                      42
<LOSS-PROVISION>                                     0                       0                       0
<INTEREST-EXPENSE>                               3,281                   3,278                   3,238
<INCOME-PRETAX>                                (1,239)                     566                 (1,416)
<INCOME-TAX>                                     (511)                     233                   (387)
<INCOME-CONTINUING>                              (728)                     333                 (1,029)
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                     (728)                     333                   1,029
<EPS-PRIMARY>                                   (0.12)                    0.05                  (0.16)
<EPS-DILUTED>                                   (0.12)                    0.05                  (0.16)


</TABLE>