Hongtai White fused alumina for 1.AL2O3: 99.5% min 2.high function of white alumina 3.high purity fused alumina 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, ...