<ARTICLE> 5
<RESTATED> 
       
                                                        
<PERIOD-TYPE>                3-MOS        3-MOS        6-MOS        6-MOS
<FISCAL-YEAR-END>            DEC-31-1998  DEC-31-1997  DEC-31-1998  DEC-31-1997
<PERIOD-END>                 JUL-04-1998  JUN-28-1997  JUL-04-1998  JUN-28-1997
<CASH>                         1,078,000    1,426,000    1,078,000    1,426,000
<SECURITIES>                           0            0            0            0
<RECEIVABLES>                 25,522,000   26,803,000   25,522,000   26,803,000
<ALLOWANCES>                   1,005,000      952,000    1,005,000      952,000
<INVENTORY>                   28,095,000   26,538,000   28,095,000   26,538,000
<CURRENT-ASSETS>              59,514,000   58,818,000   59,514,000   58,818,000
<PP&E>                        92,428,000   87,899,000   92,428,000   87,899,000
<DEPRECIATION>                52,653,000   48,691,000   52,653,000   48,691,000
<TOTAL-ASSETS>               110,818,000  110,029,000  110,818,000  110,029,000
<CURRENT-LIABILITIES>         22,264,000   26,146,000   22,264,000   26,146,000
<BONDS>                       29,582,000   28,430,000   29,582,000   28,430,000
<PREFERRED-MANDATORY>                  0            0            0            0
<PREFERRED>                            0            0            0            0
<COMMON>                         112,000      112,000      112,000      112,000
<OTHER-SE>                    51,586,000   49,513,000   51,586,000   49,513,000
<TOTAL-LIABILITY-AND-EQUITY> 110,818,000  110,029,000  110,818,000  110,029,000
<SALES>                       37,651,000   41,128,000   79,776,000   78,573,000
<TOTAL-REVENUES>              37,651,000   41,128,000   79,776,000   78,573,000
<CGS>                         24,905,000   27,020,000   53,347,000   51,485,000
<TOTAL-COSTS>                 24,905,000   27,020,000   53,347,000   51,485,000
<OTHER-EXPENSES>                       0            0            0            0
<LOSS-PROVISION>                       0            0            0            0
<INTEREST-EXPENSE>               508,000      460,000      989,000      875,000
<INCOME-PRETAX>                2,521,000    3,667,000    6,007,000    7,116,000
<INCOME-TAX>                     933,000    1,320,000    2,223,000    2,596,000
<INCOME-CONTINUING>            1,588,000    2,347,000    3,784,000    4,520,000
<DISCONTINUED>                         0            0            0            0
<EXTRAORDINARY>                        0            0            0            0
<CHANGES>                              0            0            0            0
<NET-INCOME>                   1,588,000    2,347,000    3,784,000    4,520,000
<EPS-PRIMARY>                       0.18         0.26         0.43         0.49
<EPS-DILUTED>                       0.18         0.25         0.42         0.48