... name:KMJ usage:grinding ,polishing ,sanding KMJ-2709 diamond abrasive flap wheel place of origin:dongguan ,china(mainland)type ... 3,more economicThe superabrasive diamond and cbn sand paper products( abrasive belts, block, discs, pads, bands) are made with our ... , longer working time, little dust and noise when working. high quality diamond and CBN abrasive flap wheel for grinding and polishing