Do you know the role of powder characteristics is

White fused alumina powder as raw material, made ​​of high-temperature melting. White, slightly higher hardness than corundum, lower toughness. With its manufacture of abrasive for high carbon steel, high speed steel and hardened steel grinding. Used as a polishing material, but also for precision sand casting, coating materials, chemical catalyst carrier, precision wear characteristics.
Green silicon carbide with quartz sand and petroleum coke as raw materials, high temperature melting, green translucent crystals, high hardness, cutting ability, suitable for machining hard and brittle materials, such as cemented carbide, high speed steel, and optical glass, ceramics, agate and other non-metallic heating elements, heat originals.