The lifting chain is the main component of the ring chain crane. The ring chain refers to the lifting chain. When making it, you need to choose a suitable tonnage chain, as well as other components, such as a powerful ring, unloading, butterfly buckle, hook, etc., which are correctly connected with the lifting chain. It should be noted that the powerful ring and unloading are all in the load of the load specifications. There are angles when using it. When the chain is made into a tick, there will be an angle. Therefore, it is necessary to correctly indicate the load.