EXHIBIT X JOINT FILING AGREEMENT The undersigned agree, in accordance with Rule 13d-1(f) under the Securities and Exchange Act of 1934, as amended, to jointly file with the Securities and Exchange Commission Amendment No. 1 to the Schedule 13D filed...

                                                                      EXHIBIT X
                             JOINT FILING AGREEMENT



     The  undersigned   agree,  in  accordance  with  Rule  13d-1(f)  under  the
Securities  and  Exchange  Act of 1934,  as  amended,  to jointly  file with the
Securities and Exchange Commission  Amendment No. 1 to the Schedule 13D filed on
December 31, 1998 on behalf of the  undersigned,  and any subsequent  amendments
thereto.

Dated:  October 06, 1999



                                ANDLINGER CAPITAL XIII LLC


                                By:/s/ Xxxxxxx X. Xxxxxx
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                                Name:  Xxxxxxx X. Xxxxxx
                                Title: Manager



                                   /s/ Xxxxxxx X. Xxxxxxxxx
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                                   /s/ Xxxxxxx X. Xxxxxx
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                                   Xxxxxxx X. Xxxxxx



                                   /s/ Xxxxxxx X. Xxxx
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                                   Xxxxxxx X. Xxxx



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                                   Xxxx X. Xxxxx