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 ferroalloy which is composed of ferrum and silicon. Ferro silicon used coke, quartz (or silica) as raw material and using electric furnace made by . Because of silicon and oxygen are easily compound into SIO2,so the ferrosilicon often ...