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Used for polishing granite and marble floors, diamond work thickness is 5-12.5mm, sharp and long used life The grit is usual as follow: 1.60,150,300,500,1000,2000,3000,Buff 2.50,100,200,400,800,1500,3000,Buff 3.60,120,220,400,800,1800,3500,Buff [ZL diamond tool co.,ltd.]
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