... ferroalloy", "refractory materials", "steelmaking deoxidizer," "cast materials"1. Ferrosilicon products: FeSi alloy, silicon metal, ferromanganese, silicon barium, calcium silicon, silicon aluminium ... Refractory materials: silicon carbide powder, silicon metal powder...... ;3. Deoxidizer in steelmaking: silicon powder, the calcium silicon powder, silicon carbide powder, ferrosilicon ball, new calcium ...