the BFA produced by Zhongbang Abrasives Co., Ltd. Are all first grade BFA with the proportion of Al2O3 More than 95%, which select high quality block BFA from the tilt pouring furnaces, processed through rolling machine, Barmac machine, autogenous milling machine and magnetic machine, it is characterized by its high-hardness, great toughness, resistance of shock, high temperature, oxidation and corrosion. It is the ideal raw material for producing grinding wheels, sandpaper, blasting media, metal preparation, lapping, polishing, and grinding.