Black Silicon carbide : F12-F14,use for sandblasting,rust removal,snagging,heavy duty grinding of steel ingot,leather,salt,floor boards.
Black Silicon carbide : F14-F30,use for casting play burr,cutting billet and steel tube,flat kibbling,steel ingot grinding,marble grinding,or as refractory material.
Black Silicon carbide : F30-F60,use for surface abrasion,outside&surface grinding,centerless grinding,tool grinding of quenching or no-quenching steel profiles,copper or other hard metal.
Black Silicon carbide : F60-F100,use for precision grinding, cutter sharpening,gear grinding,etc.
Black Silicon carbide : F100-F240,use for cutter sharpening,rough grinding,precision grinding,thread grinding.
Black Silicon carbide : F280-F600,use for precision grinding&thread grinding of instrument and matter an gear products.
Black Silicon carbide : F600-F2000,super-precision polishing,mirror polishing,surface lapping,etc.
