| 摘要 |
A polishing device is provided which is attachable to a tip holder plate of a concrete polishing machine to polish a concrete surface. The polishing device includes a tip holder that is compression-molded using a heat resistant plastic material to include a plurality of tip support portions. A plurality of polishing tips are inserted into and bonded with the tip support portions of the tip holder with the polishing tips protruding out from the tip support portions when unworn. After the polishing tips are worn an initial amount from polishing the concrete surface, the tip support portions of the tip holder and the polishing tips are adapted to collectively grind the concrete surface. |
