... kg bagsTangshan C&M TradingCo.,Ltd,established in 1999, is a company mainly engaged in the trade of chemical products. Our main ... ,Magnesium Sulphate,Sodium Metabisulphate,Kieserite,Magnesium Carbonate Light,Magnesium Oxide Light,Sulfamic Acid,Calcium Nitrate,Magnesium Nitrate,MagnesiumChloride,Calcium Carbonate Light,Ferrous ...