... density 2.high strength 3.high hardness Hot selling iron powder briquette machineThe machine uses 65Mn rigid ... used for high-density metal scrap(scrap iron,copper scrap,aluminum scrap,etc.),granular powder ... metal powder,metallurgical additives,sponge iron,etc.The finial products have high density, ... forming machine and drying equipment..... Hot selling iron powder briquette machine