Capstan (including hand winch, electric winch, hydraulic winch,aerodynamic winch and mechanical winch) primarily for terrain vehicles, farm vehicles, ATV sports cars, yachts and other special vehicles. It's the Vehicles, vessels of self-protection and traction devices, in the snow, marshes, deserts, beaches, muddy road and other harsh environment vehicle for self-salvation, and possibly in other circumstances, for smoothing, to drag objects, the installation of facilities operations, military police, oil, hydrological, environmental protection, forestry, transportation, public security, border control, fire and other field sports,as an indispensable device.