... floor polishing machines with reasonable prices. Our machines are widely used on floor surface, for renovation,grinding and polishing. We ... , and new floor applying, etc.2. On floor surfaces covering concrete, epoxy, stone, marble, granite, terrazzo, etc.3. Under condition ... .productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); JS-550 dual-head concrete floor polishing machine