... -58% Chloride: 0.10 To whomever concern, Shijiazhuang YCSD Trade Co., Ltd is a leading export trader in northern China on ... the basis of Shijiazhuang Yongchang Zinc Oxide Co., Ltd, handling the line of inorganic chemistry with ... Mrs Michelle Sales ManagerShijiazhuang YCSD Trade Co., LtdA08M Hi-Tech International Building Changjiang Road, Shijiazhuang, China TEL: +86-311- ...