並前往http://www.trtool.com.tw/%E5%85%A5%E9%96%80%E7%AF%87-%E5%A6%82%E4%BD%95%E8%AA%8D%E8%AD%98%E9%8F%88%E9%8B%B8%E7%9A%84%E9%8F%88%E6%A2%9D-distinguish-saw-chain/
