<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from Form 10-Q
for the quarter ended June 30, 1999 and is qualified in its entirety by
reference to such financial statements.
</LEGEND>
<MULTIPLIER> 1,000
<CURRENCY> USD

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               JUN-30-1999
<EXCHANGE-RATE>                                      1
<CASH>                                           1,794
<SECURITIES>                                    14,761
<RECEIVABLES>                                   39,979
<ALLOWANCES>                                     1,034
<INVENTORY>                                     25,955
<CURRENT-ASSETS>                                88,011
<PP&E>                                         106,962
<DEPRECIATION>                                  50,667
<TOTAL-ASSETS>                                 193,397
<CURRENT-LIABILITIES>                           48,409
<BONDS>                                         33,630
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           142
<OTHER-SE>                                     104,545
<TOTAL-LIABILITY-AND-EQUITY>                   193,397
<SALES>                                         90,978
<TOTAL-REVENUES>                                90,978
<CGS>                                           59,435
<TOTAL-COSTS>                                   59,435
<OTHER-EXPENSES>                                24,553
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               1,352
<INCOME-PRETAX>                                  5,638
<INCOME-TAX>                                     1,917
<INCOME-CONTINUING>                              3,721
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     3,721
<EPS-BASIC>                                    $0.26
<EPS-DILUTED>                                    $0.26