The lifting chain has great tension, and its material is 20Mn2. The chain is spliced and welded with fully automatic equipment. After several processes of production, the quenched chain has high hardness and wear resistance. The lifting chain is suitable for lifting. As a lifting chain, it is applied to chain block and electric hoist and driven by sprocket. As a sling, the lifting chain can be used as a two-legged and multi-legged lifting heavy equipment. There are many kinds of rigging, and the sling of the chain is made through the link of butterfly buckle and shackle parts.