... 3,manufacturer Refractory , polishing ,abrasives material ,green silicon carbide with high quality1,sic content more then 98% ... semi-conductor materials. The Chemical Composition of green silicon carbide:PurposeSpecificationChemical Composition(%)Magnetic material content(%)maxAbrasives gradeSICminF. ... -1mm1-3mm3-5mm5-8mm990.350.7—Fine Powder-180mesh-200mesh-240mesh-320mesh980.350.7—colorgreenHardness ...