... abrade cemented carbide Green Silicon carbide1:Appearence: Light black Powder2: composition:SiC,FeO,C3: application:abrade cemented ... : 280-3400kg/mm214. Package: 20Kgs/bag15. Appearance: black and semi-transparen Application Abrading cemented carbide, optical glass, ... requirements of raw materials and manufacturing process. Black Silicon Carbide presents black & semi-transparent, its hardness and ...