The DHS ring chain electric gourd is 1 ton of 3m, a single -rooted chain, with a controllers with a control of 2.5 meters long. Chain electric gourd runs smoothly and stable performance. The power supply is divided into 220 volts and 380 volts. The method of use is simple under the mountain with safe hooks, which can be used by hanging. It can be used with a hand -pulling car or a manual car on the work steel. You can also use an electric sports car to achieve a square walk. You can control it with a handle. You can also match wireless remote control.