... 3--25mm,25--5 ferro silicon granule1.brand:Huikang 2.density is small 3.mainly used in smelting,steelmaking,casting. 4.0.5 ... ,grain,and it is mainly used in smelting,steelmaking and casting. Raw Material The ferro silicon granule takes the coke, scrap steel, and ... percent) ,and the ferrosilicon of different contents of silicon ,95%, 75%, 65% and 45%, etc. Property Appearance: silver gray, massive, not ...