Explosion -proof hand stubbuku is a manual lifting tool. The self -weight of the hand pour is relatively light. Equipped with a secure hook, a heavy chain and a zipper. By dragging the fiber zipper, the heavy chain can be driven to enhance the heavy objects. Before use, you need to check whether the chain, hook and control device on the hand of the hand can operate normally to ensure that no components are loose or worn. After completing the lifting task, you should unload the gourd from the object and store it properly. You need to check whether the handle gourd is clean and storage correctly to ensure the safety and effectiveness of the next use.