Industrial brush 1.Abrasive brush 2.Applying to ceramic,granite,artifical stone and glazed brick. 3.Grits from 36# to 500# Industrial brush ♦ .Product information ... ) on the marble, granite, stone slab ect.2.Type of brush: fickert brush, demison drawing is as follow 3.Grain:36#, 46 ... #, 240#, 320#, 500#.Different qualities are available upon request. Industrial brush,abrasive brush for stone