精选优质文档-倾情为你奉上The winchThe winch is also known as the winch, mainly used in construction, water conservancy engineering, forestry, mining, terminals and other material lifting or flat mop. A winding drum is used for winding wire ropes or chains to enhance or draft light small lifting equipment.Winch has the following characteristics: high versatility, compact structure, small volume, light weight, great. The use of convenient transfer, is widely used in construction, water conservancy e
