Hoists are large mechanical equipment that transport materials by changing potential energy, such as mine hoists and dam crossing hoists. Broadly speaking, elevators, cranes, winches, stabilizers, hoists, and gates can all be considered as hoists. Hoists typically refer to large machinery with high power and lifting capacity. They transport materials by moving up and down with the help of power-driven flexible steel wire ropes and the goods being transported. Steel wire ropes are an indispensable and important part of lifting machinery, with main types including phosphated coated wire ropes, galvanized wire ropes, stainless steel wire ropes, and smooth surface wire ropes, etc.