We control every distinct production step in the manufacturer of our Quartz Monitor Crystals,from the supply of the high Q raw Quartz to this a strictly wise saws used to cut the primary wafers.Add to this a stricty controlled lapping and contouring process and you have the foudation for a truly supertary washing process and angstrom level accuracy electrode plating all in clean room conditions we manufacture a truly advanced quality Quartz Monitor Crystals....