vitrified grinding wheel, cutting disc, resinoid grinding wheel for metal , stone , glass, ceramic , aluminium ... alumina, black and green silicon carbide, used for grinding metal, stainless steel, cast iron, cooper, marble ... , thickness up to 250mm.meantime we provide thin wheels with 3mm thickness , pink and blue ... of metal or non-metal process.super thin cutting disc for needle, available size 180x0 ...