Flap wheels with flangeIt belongs to the category of grinding wheel, it is made of small pieces of poweful resin abrasive cloth, and coated with abrasive at back, it is in fan and radial shape. The main abrasives are brown alum-oxide. It is used on electrical and pneumatic grinding machine, and other special grinding machine. It has advantages of high efficiency, average consumption, easy-operation, resisting burning of work pieces. It is widely used in auto, machinery, instrument, ship, appliance, furniture, bridge, construction, etc.