... specially used fro mat grinding on marble,granite and artificial stone,whose main types including ... 240,320,400,600,800,1000,1500Trapezoid140Granite,Quartz stone170Granite,Quartz stoneFrankfurt104Marble,Artificial stonePlate-shaped120-250Granite,Marble, ... stone and Quartz stoneBarrel-shaped25-100Granite,Marble,Artificial stone and Quartz stone Perfect Grinding Effect Granite Abrasive Polishing ...