Jan 05, 2013
QuartzProducingExpert
ISO9001 ISO14001OHSAS18001
tol+/-0,2
high purity quartz rod,fused quartz glass rod,fused quartz rod
Company: Donghai Shengda Quartz Products Co., LtdCertification: ISO 9001, ISO14001, OHSAS18001 Advantage: cost price controlled well, high precision, good...