... polishing 1.High purity,SIC:98%min 2.FEPA,JIS,GB series 3.More than 90% exported Black ... stone polishing1.High purity,SIC:98%min 2.FEPA,JIS,GB series3.More than 90% exported1.DescriptionBlack silicon carbide ... F.C: 0.2%maxFe2O3: 0.2%max JIS R6001-1987Grit No.SizeFeaturesFeatures#12Colour:black Package:Paper bag ... #150#180#220#320#800Black silicon carbide JIS, Black silicon carbide abrasive material