1,winch for bridge,construction... 1,lifting safety 2,powerful traction 3,Slow Speed Winch pull capacity from 1T to 50T This ... large-sized concrete, steel structure, equipment in construction site, mine, shipyard, slipway, plant and so on.There are two ... , small pull capacity is appliable for construction, lifting, disassembly, traction, assembly in construction company, mine, factory and so on.Large ...