stone grinding machine grind,polish and crystallize Granite,Marble ,Terrazzo and ,Centralized control ,easily operation stone grinding machineTypeGrinder GE-520BVoltage220V ... 30Specification(L*W*H)650*750*130mmFeature:1.This grinding machines and polishing machines , alterable frequency, alterable ... soft and hard coatings6.It's for dry and wet use, optional grinding or polishing pads ,screw backer or ...