... 270*550 3)Siemens motor 4)Efficient TWO-Head edge grinding machine JS-550A Market position: We are manufacturer for medium ... . Our machines are widely used on floor surface, for renovation,grinding and polishing. We occupied the market because our machine allows ... to the premium raw material it has. Applications:1, For grinding, polishing, renovation, restore, repair, and new floor applying, etc.2 ...