Donghai Shengda Quartz Products Co., Ltd. is a special company which manufactory and supply quartz products. It was founded in 1994, is located in Donghai county, Jiangsu Province, China. Our company supplies high pure crystal powder, high pure low hydroxyl crystal powder, transparent quartz glass tube, filtering ultraviolet quartz glass tube, non-ozone quartz glass tube, quartz bar, white tube and futher manufacturing quartz tube. We also supply products with customers’ requirement.