Ferro silicon 1.composiyion:Si,Fe,Al,Ca,S.P,C 2.Application:steel-making,iron casting 3.high quality,low price 4 ... .Ningxia Ferro silicon Ferro silicon is a kind of ... is widely used in low alloy steel,non-ferrous metal,bearing steel,heat-resistant steels and electrician silicon-steel.Ferrosilicon commpmly used as a ...