... 2.FEPA,JIS,GB series3.More than 90% exported1.DescriptionBlack silicon carbide is produced at high temperature in an electric resistance type ... , hardnessBlack silicon carbide abrasives are suitable for working on cast iron, non-ferrous metal, rock, leather, rubber, etc. It is also broadly used as ... #70#80#90#100#120#150#180#220#320#800Black silicon carbide for stone polishing & grinding Black ...