... -80.02.01.50.40.50.040.20.02Fe6565.0-72.02.01.50.60.50.040.20.02Fe4540.0-47 ... , silicon metal, ferromanganese, silicon barium, calcium silicon, silicon aluminium and silicon barium calcium...... ;2. Refractory materials: silicon carbide powder, silicon metal powder...... ;3. Deoxidizer in steelmaking: silicon powder, the calcium silicon powder, silicon ...