White Fused Alumina ( WFA OR WA) is made from chemical by high furnace or tilting furnace at high temperature . White corundum is based on high-quality aluminum oxide as raw materials, smelting fused together, it has a pure white color, hardness, toughness slightly lower, high-purity, since sharp distinctions, grinding power, heat a small, efficient , Acid corrosion, high temperature, better ...