... :High hardness materials: carborundum, various corundum, boron carbide, diamond, etc.;Non-metallic mineral: quartz, graphite, kaolin, calcium carbon, mica, etc.;Chemical engineering ... , hawthorn, pearl powder, ganoderma, vegetables powerder, Chinese herbal medicine etc.; Metallic materials,aluminite powder, magnesium powder, zinc powder, tin powder etc ...