Large storage tanks can be used in many places. Such as chemical tanks, petroleum tanks, sewage tanks, and so on. Most of these tanks are welded in steel plates. The inverted construction method is adopted during construction, that is, when the top is made, and then the tank is welded from top to bottom. The electric gourd will be used as a lifting machinery to improve the tank as a whole. Workers will also call it start. After the steel plate is welded into a layer, it will be improved and welded in the next layer. Electric gourds are installed on the hug, and the hug is evenly distributed around the tank. Select the number and specifications of the gourd according to the weight of the tank. The electric gourd used in the can is usually a group hanging ring chain electric gourd.