5 tons of stainless steel hand pour gourd. It uses a double chain with a standard chain of 3 meters and supports customized extension. Use instructions when used. It is strictly forbidden to use it overload. Before use, it is necessary to confirm that the machine parts are intact, the transmission part and the lifting chain are well lubricated, and the air rotation is normal. Check whether the upper and lower hooks are lined up before the suspension. The lifting chain should be suspended vertically. There must be no errors that are wrong. During the lifting process, regardless of whether the heavy object rises or decreases, it should be uniform and slow when dragging the bracelet, and do not excessively force to avoid the bracer beating or the stuck ring.