1.Chemical composition: Si(30%-75%),Fe,Ai,Ca 2.Size: according to your needs 3.Supply: 3000t/month (timely delivery) 4.1t/bag Product: The ferrosilicon powder 1. Shape: lump , granule , powder , briquetting 2. Size: 0mm-3mm 3. Chemical composion: Si(30%-75%),Fe,Ai,Ca,Mn,Cr,C,P,S4. To precipitate and diffuse deoxidation in steel making.5. Factory price. We are a manufactory of produce the ...