... High purity super hard material. Such as phosphor powder, TITANIUM DIOXIDE, silicon, aluminum, copper and other high purity ... material. Such as garnet, silicon carbide, spodumene, cerium oxide, alumina, alumina and so on.3.Food, pharmaceuticals and ... kaolin, ground calcium carbonate, mica and so on.6. Reflectorized material and power coatings.Such as iron oxide, titanium oxide, glass microsphere ...