... refractory, ceramic and abrasive area, such as making vitrified bonded grinding wheels, resin bonded tools, to process cast iron, hard alloy ... widely used for polishing none-metal material like ceramic, glass, stone, agates, jades and jewels.Typical Chemical Analysis:SiC 99.43 ... 8486-1. Green Silicon Carbide / GC-GPA for vitrified bonded grinding wheel