Free sample White fused corundum for surface cleaning White fused corundum is made by Aluminium Oxide powder which is electrically fused at high temperature. Our WA has the features of stable quality, well-distributed particle size composition, low magnetic substance content, high bulk density and hardness, good toughness, and high cleanliness, etc. It has been exported to more than 20 countries in Europe, America, Southeast Asia, etc.