1.Fe>30%,Pb<20ppm,As<2ppm,Cd<5ppm 2.Certificated by ISO9001:2008 and FAMI-QS 3.Annual output:20000MT 4.25kg/woven bag 1.Fe>30%,Pb<20ppm,As<2ppm,Cd<5ppm2.Certificated by ISO9001:2008 and FAMI-QS3.Annual output:20000MT4.25kg/woven bag Ferrous Sulphate/Ferrous SulfideFerrous sulphate monohydrate is a mineral additive in animal feel. As a blood tonic substance to livestock, it can stimulate the ...