... *550MM 3)Siemens motor 4)Efficient JS-550 double head stone floor grinder Market position: We are manufacturer for medium-to ... floor applying, etc.2. On floor surfaces covering concrete, epoxy, stone, marble, granite, terrazzo, etc.3. Under condition both dry and ... wet.4. Fit kinds of tools covering resin bond diamond pad, metal bond diamond pad, PCD blade, Frankfurt, sandpaper, etc. Product Features ...