... Life & Processing Efficiency Granite Magnesite FickertsL140 Polishing Abrasive Stones For Polishing Granite Slab/Tile on Automatic Polishing Machines ( 12 head, 16 heads, 20 heads ... #, 60#, 80#, 120#, 120#, Polishing Head #9- #16: 220#, 320#, 400#, 600#, 800#, 1000#, 1200#, LUX Magnesite Fickert and Polishing Abrasive for Granite