... 4",5",6",7" grite:#50#100#200#400#800,#1500,#3000 use for polishing ... machine, the ground refurbished machine, ceramic polishing machine use.This product grinding sharp, good ... of the customers.diameter :3",4",5",6"thickness 4.0MMgrite #50,#100,#200 ... polishing of granite and hard marble in automachine floor pad RESIN EDGE POLISHING WHEEL POLISHING PAD FOR FLOOR WET DIAMOND POLISHING PAD--floor polishing ...