... , and new floor applying, etc.2. On floor surfaces covering concrete, epoxy, stone, marble, granite, terrazzo, etc.3. Under condition both ... panel than others in the market 6. Covering shell: FRP--(Fiber Reinforced Plastics) 7. Driven by both gear and belt 8 ... .minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); JS-550 dual-head concrete floor polishing machine