... price, can be used widely SpeciesCode No.colorfeaturesselectionbrown fused aluminaATanhigh rigidity, strong flexibility, low price, can ... red Sharp cutting, good edges holdout, durableSuitable for form grinding, knives, Measuring instrumentGreen silicon carbideGCgreenOnly ... no harder than Boron carbideSuitable for grinding Hard alloy, Optical glass, vitrify and ...