1)220KG Weiqht concrete cup grinder Machine 2)380V or 220V 5.5HP 0-1800RPM 270*500 ... , thanks to the premium raw material it has. Applications:1, For grinding, polishing, renovation, restore, repair, and new floor applying, etc ... to assure good quality and longer life. 5,One-body steel or aluminum alloy gearbox, thicker panel than others in the ...