<ARTICLE> 5
<MULTIPLIER> 1,000
       
                                                                                            
<PERIOD-TYPE>                   12-MOS                   9-MOS                   6-MOS                   3-MOS
<FISCAL-YEAR-END>                          JAN-31-1997             JAN-31-1997             JAN-31-1997             JAN-31-1997
<PERIOD-END>                               JAN-31-1997             OCT-31-1996             JUL-31-1996             APR-30-1996
<CASH>                                           1,697                     551                     289                     381
<SECURITIES>                                         0                       0                       0                       0
<RECEIVABLES>                                   43,317                  51,971                  48,008                  46,960
<ALLOWANCES>                                     1,002                   1,349                   1,052                     939
<INVENTORY>                                     17,739                  15,188                  15,796                  16,028
<CURRENT-ASSETS>                                69,782                  73,818                  71,055                  72,051
<PP&E>                                         123,422                 116,452                 114,248                 112,231
<DEPRECIATION>                                  69,015                  67,331                  65,877                  64,249
<TOTAL-ASSETS>                                 143,650                 144,411                 139,619                 139,445
<CURRENT-LIABILITIES>                           40,139                  40,944                  41,373                  39,178
<BONDS>                                         30,314                  32,343                  29,481                  33,900
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                       0                       0
<COMMON>                                            89                      89                      89                      89
<OTHER-SE>                                      62,575                  61,265                  58,046                  55,379
<TOTAL-LIABILITY-AND-EQUITY>                   143,650                 144,411                 139,619                 139,445
<SALES>                                         26,309                  20,285                  12,291                   6,517
<TOTAL-REVENUES>                               222,853                 170,297                 110,085                  53,773
<CGS>                                          161,602                 123,080                  80,040                  39,703
<TOTAL-COSTS>                                  172,576                 131,284                  85,492                  42,544
<OTHER-EXPENSES>                                     0                       0                       0                       0
<LOSS-PROVISION>                                     0                       0                       0                       0
<INTEREST-EXPENSE>                               2,447                   1,847                   1,288                     679
<INCOME-PRETAX>                                 12,930                  11,425                   6,092                   2,005
<INCOME-TAX>                                     4,913                   4,570                   2,437                     902
<INCOME-CONTINUING>                              8,017                   6,855                   3,655                   1,103
<DISCONTINUED>                                       0                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                     8,017                   6,855                   3,655                   1,103
<EPS-PRIMARY>                                     0.90                    0.77                    0.41                    0.12
<EPS-DILUTED>                                     0.88                    0.75                    0.40                    0.12