Welding Rotator, Welding Positioner, Welding Column and Boom manufacturer / supplier in China, offering 250t Capacity Rotator for Wind Tower Welding with 380V Voltage, Heavy-Duty 250t Capacity Rotator for Wind Tower Welding, 380V, 250t Capacity Rotator for Wind Tower Welding, 800-10000mm Diameter and so on.