... % Chloride: 0.10 To whomever concern, Shijiazhuang YCSD Trade Co., Ltd is a leading export trader in northern China on the ... Zinc Oxide Co., Ltd, handling the line of inorganic chemistry with the main products include Zinc Salt, Zinc Acid, Magnesium Salt, Magnesium Acid, ... Chrome Oxide Green, etc. Our annual capacity of Magnesium Oxide and Magnesium Carbonate both are about 10000 MTs with the grade ...