... ,polishing ,sanding KMJ-2709 diamond abrasive flap wheel place of origin:dongguan ,china(mainland)type ... :abrasive flap wheel brand name:KMJ usage:grinding ,polishing ... 50mmSpecificationssuper hard diamond and cbn sanding products 1,for glass, stones,steel,etc 2,professional manufacturer 3 ... quality diamond and CBN abrasive flap wheel for grinding and polishing