There are many specifications of aluminum alloy hands. The dual chain of 3 -ton aluminum alloy hand pulling the gourd is a 5mm lifting chain as a bearer traction chain. It is a manual leading tool, which is tightened by the traction of the wire. Because this hand holding the gourd itself is small and the self -heavy is light, we can use it in the construction of the power line, and the staff can easily take it to work at a high altitude. We can use it to adjust the lines of the line, tighten the line, etc. Essence Because of its own compact, we can also work in the narrow space environment, and use at high altitudes and wild in different angles of traction operations.