We offer superior quality sponge iron that is also known as direct- reduced iron. Our offered sponge iron is made for high grade, 65-70 fe Min fem-80%, fet-90-92%, s-0.04% max. Loose in form of lumps. Sponge iron filter material In industry through a sponge iron production equipment is widely applied iron phosphorus reduction method, method of reduction of iron ore concentrate, etc., the rolling iron phosphorus or ore concentrate after reduced iron press down into pieces, into the roasting tube into the kiln roasting, produce the high quality reduced iron. Sponge iron filter material for the first time into the deaerator, must first after backwashing, remove the sponge iron residue on the surface of the filter material float ash impurities.