... , On floor surfaces covering concrete, epoxy, stone, marble, granite, terrazzo, etc.3, Under condition both dry and wet.4. Fit ... /220V50HZ/60HZModel35.5HPVARIABLE 0-1800RPM270X550(MM)220KGS4PCS6PCS20kgs30L Standard configuration:1, Machine body2, 20kgs extra weight - 1 ea3, 10m electric wire - ... MOQShipping port: Shanghai, ChinaQuantity discount: availablePictures: concrete cup grinder Machine JS-550B