Hoists, winches, also known is the use of drum winding wire rope or chain for lifting or pulling a heavy load of small light lifting equipment, can be vertical, horizontal or inclined pulling heavy loads. Now with electric winch. Can be used alone, can also be used for lifting, such as road building and upgrading of machinery components, due to large amount of simple operation, around the rope, move easily and widely applied. Widely used in mining, metallurgical, crane, construction, chemical industry, roads and bridges, water and electricity installation lifting the industry.