Heavy twisted also is also called manual rolling machine. The heavy -duty rolling machine is a very widely used traction equipment. In the case of powerless operations, it is applied to many fields such as shipyards, docks. In some working environments, its tension is greater than the electric rolling machine, and it is not limited by the power supply of the construction site. The heavy twisted plate has a total of 0.5 tons, 1 ton, 2 tons, 3 tons, and four specifications. The length of the wire rope can be customized according to the usage.