... & Efficiency 3)Tested in Europe & South Americas Marble Frankfurt Abrasive Stone L105For Polishing Marble Slab/Tile on Automatic Polishing Machines ... or less)Good Polishing Surface, High Tool Life & Processing Efficiency Grit Size available:16#, 24#, 36#, 46#, 60#, 80#, 120 ... #, 400#, 600#, 800#, 1200#, Extra -5 and Cleaner Recommend Grit Solution for 16 Head Polishing MachinePolishing Head #1- #8: 60 ...