Quartz Crystal in Ontario
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Lap-Tech Inc - Bowmanville
230 Simpson Ave. Bowmanville. Ontario.
Quartz silicon and ceramic sawing lapping and polishing services crystals for frequency control units.
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Croven Crystals Ltd. - Whitby
500 Beech St.. Whitby. Ontario.
Quartz crystals from 1.500 to 360 MHz for aerospace military avionics and telecommunications applications.