... with high silica brick, silica brick, and ordinary raw materials such as silicon carbide. Metallurgy: silicon metal, silicon ... abrasive paper, sandpaper, emery cloth, etc.)6. Electronic: high-purity silicon metal, communication with optical fiber7. Rubber and plastic: packing ... the weatherability of coatings)9. Metallurgical industry: silicon metal, silicon and silicon aluminum alloy and other raw ...