1.Chmecal composition: Si(30%-75%),Fe,Ai,Ca 2.Size: according to your needs 3. ... , etc. According to your demand. 3. Chemical composion: Si(30%-75%),Fe,Al,Ca,Mn,Cr,C,P,S4. To precipitate ... : "ferroalloy", "refractory materials", "steelmaking deoxidizer," "cast materials"1. Ferrosilicon products: FeSi alloy, silicon metal, ferromanganese, silicon barium, calcium silicon, silicon aluminium ...