The standard chain of 0.75 tons of aluminum alloy hand pulls the gourd is 1.5 meters long. It uses aluminum alloy material, which is mainly used for the adjustment of electricity, railways, and power locomotives. The threader is used as a tightening wire in the construction of the overhead line. The aluminum alloy hand holds a gourd with 0.75 tons, 1.5 tons, 3T, and 6T. Generally, this handboard gourd is mainly applied to electricity. Like aluminum alloy hand -to -hand gourd revocation and hook types are good hook types, which is a hook with a hook model underneath.