<ARTICLE> 5
<MULTIPLIER> 1,000
       
                                                                                            
<PERIOD-TYPE>                   12-MOS                   9-MOS                   6-MOS                   3-MOS
<FISCAL-YEAR-END>                          JAN-31-1998             JAN-31-1998             JAN-31-1998             JAN-31-1998
<PERIOD-END>                               JAN-31-1998             OCT-31-1997             JUL-31-1997             APR-30-1997
<CASH>                                           2,954                   3,382                   5,366                   1,218
<SECURITIES>                                         0                       0                       0                       0
<RECEIVABLES>                                   56,372                  67,760                  61,071                  52,083
<ALLOWANCES>                                     2,583                   2,772                   2,717                   1,349
<INVENTORY>                                     27,812                  23,986                  22,378                  19,024
<CURRENT-ASSETS>                                99,094                 107,910                 102,279                  78,674
<PP&E>                                         166,867                 165,622                 156,698                 125,674
<DEPRECIATION>                                  79,948                  76,857                  73,820                  71,276
<TOTAL-ASSETS>                                 243,899                 250,831                 239,304                 152,841
<CURRENT-LIABILITIES>                           59,433                  67,782                  68,317                  41,102
<BONDS>                                         57,500                  55,267                  88,962                  35,783
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                       0                       0
<COMMON>                                           116                     116                      89                      89
<OTHER-SE>                                     114,143                 115,208                  69,456                  64,411
<TOTAL-LIABILITY-AND-EQUITY>                   243,899                 250,831                 239,304                 152,841
<SALES>                                         30,246                  23,526                  16,326                   8,279
<TOTAL-REVENUES>                               294,600                 215,768                 125,433                  57,750
<CGS>                                          213,717                 155,771                  90,823                  42,145
<TOTAL-COSTS>                                  228,840                 166,190                  96,524                  44,977
<OTHER-EXPENSES>                                     0                       0                       0                       0
<LOSS-PROVISION>                                     0                       0                       0                       0
<INTEREST-EXPENSE>                               3,618                   2,564                   1,346                     614
<INCOME-PRETAX>                                 18,431                  15,718                   7,849                   2,714
<INCOME-TAX>                                     7,004                   5,973                   2,983                   1,031
<INCOME-CONTINUING>                             11,427                   9,745                   4,866                   1,683
<DISCONTINUED>                                       0                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                    11,427                   9,745                   4,866                   1,683
<EPS-PRIMARY>                                     1.13                    1.01                    0.55                    0.19
<EPS-DILUTED>                                     1.09                    0.97                    0.52                    0.18