Shijiazhuang YCSD Trade CO., LTD established in 1999, which is the subsidiary company of GAOYI COUNTY YONGCHANG ZINC INDUSTR CO., LTD, producing Zinc Oxide, zinc carbonate and zinc sulphate in China. YCSD Trade CO., LTD is a special chemical trade company, It has long time of partnership with many Manufacturers in China and many overseas customers. We aim to supply our customers with Quality Products, Competitive Pricing and Best Service......