White corundum with industrial alumina powder as raw material, regularly over 2000 degrees in the arc after cooling in high temperature melting, after smashing plastic, magnetic separation to iron, screen is divided into a variety of particle size, dense texture, high hardness, granular form sharp corners. White corundum grinding tool is suitable for manufacturing ceramic porcelain, resin consolidation and grinding, polishing, sandblasting, precision casting, precision casting special corundum), etc., can also be used for manufacturing high-grade refractory materials, code-named "WA" international general standards, national standards are consistent, most for export, supply domestic users also have a certain amount. Product size according to the international standard and national standard production, granularity processing according to user requirement.Gm grain sizes of the F4 ~ F220, its chemical composition depending on the size of the particle size.Outstanding characteristic is little impact resistance, crystal size if using autogenous grinding machining, particles are spherical particles, the surface dry clean, easy to bond.