... maxAs 0.002% maxPacking In 25 kg bagsTangshan C&M TradingCo.,Ltd,established in 1999, is a company ... mainly engaged in the trade of chemical products. ... Metabisulphate,Kieserite,Magnesium Carbonate Light,Magnesium Oxide Light,Sulfamic Acid,Calcium Nitrate,Magnesium Nitrate,MagnesiumChloride,Calcium Carbonate Light,Ferrous SulphateMono( ...