Poly Ferric Sulphate 1.Total Iron Mass:21%; 2.Insoluble Substance:0.2max; ... Chloride,Poly aluminium Ferric Chloride,Poly Ferric Chloride,Poly Ferric Sulphate,Ferrous Sulphate,Coalbased Activated Carbon,Coconut Shell Activated Carbon,Woodbased Activated ...