There are many tons of stainless steel in chain block, including 0.5 tons, 1 ton, 2 tons, 3 tons and 5 tons. The lifting standard chain is 3 meters long and the hand zipper is 2.5 meters. It uses brake pads and pawls to brake. It is a small hand-pulled small crane. Its own weight is relatively light, portable, and not affected by power supply, suitable for use in power-free environment. Stainless steel chain block is suitable for use in workshops or warehouses that require cleanliness. Chain block adopts rotating safety hooks with safety cards to prevent the gourd and heavy objects from falling off. Before use, check whether chain block and heavy objects are fixed properly. Then smoothly pull the zipper strip to operate.