... , depending on grade you choose. Aluminum oxide white powderWhite Aluminum Oxide Sand, Calcined Alumina powderAppearance: White powder Material: A-AL203Medium Particle Size ( ... ceramics, high pressure sodium lamp, EP-ROM windowHigh strength alumina ceramics substrate plate, crucible, cutting toolEtching, Carving & Gouging ... with the Good quanity in China. White Aluminum oxide powder for abrasives