<ARTICLE> 5
<MULTIPLIER>                1,000
       
                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>               May-31-1997
<PERIOD-END>                    May-31-1997
<CASH>                                1,877
<SECURITIES>                              0
<RECEIVABLES>                        37,745
<ALLOWANCES>                              0
<INVENTORY>                           4,989
<CURRENT-ASSETS>                     57,754
<PP&E>                               50,823
<DEPRECIATION>                       20,861
<TOTAL-ASSETS>                      116,872
<CURRENT-LIABILITIES>                29,541
<BONDS>                                   0
<COMMON>                                 95
<PREFERRED-MANDATORY>                     0
<PREFERRED>                               0
<OTHER-SE>                           76,117
<TOTAL-LIABILITY-AND-EQUITY>        116,872
<SALES>                             183,144
<TOTAL-REVENUES>                    183,144
<CGS>                               165,704
<TOTAL-COSTS>                       165,704
<OTHER-EXPENSES>                     11,944
<LOSS-PROVISION>                          0
<INTEREST-EXPENSE>                      536
<INCOME-PRETAX>                       5,114
<INCOME-TAX>                          2,486 
<INCOME-CONTINUING>                       0
<DISCONTINUED>                            0
<EXTRAORDINARY>                           0
<CHANGES>                                 0
<NET-INCOME>                          2,984
<EPS-PRIMARY>                          0.31
<EPS-DILUTED>                          0.30