... :GC-GPA can be used in refractory, ceramic and abrasive area, such as making vitrified bonded grinding wheels ... , to process cast iron, hard alloy, tatium alloy and high speed steel. As loose grains, it is widely used ... material like ceramic, glass, stone, agates, jades and jewels.Typical Chemical Analysis:SiC 99.43%Free Carbon ... Standard 42-1:2006 or ISO 8486-1. High Purity Green Silicon Caribide