... .Application :abrasive cloth jumbo rolls, for making sand belts, flap disc, flap wheels, etc. for wood, metal, stainless steel 1. Aluminum ... oxide grain, for making sand belt, flap disc, flap wheel, for wood, ... for wood, metal, glass polishing3. Zirconia grain, for making flap disc, sand belts, for stainless steel polishing4. size : there ...