... steel, 2High-speed steel, High-carbon steel 1.silicon carbide fiber disc, has good flexibility, high Intensity and high ... the quantity of ZrO increases.2.Only no harder than Boron carbide and Diamond, friable, its girt is sharp, and Thermal ... grinding, knives, Measuring instrumentGreen silicon carbideGCgreenOnly no harder than Boron carbideSuitable for grinding Hard alloy, Optical glass, vitrify and ...