Jan 05, 2013
QuartzProducingExpert-SD
ISO9001 ISO14001,OHSAS18001
Mintolerance+/-0.2mm
quartz window plate, quartz plate, quartz disc
Company: Donghai Shengda Quartz Products Co., LtdCertification: ISO 9001, ISO14001, OHSAS18001 Advantage: cost price controlled well, high precision, good...