1. First, distinguish between hangers and rigging by definition. Hanging gear refers to the rigid collection device of the crane operation industry. Rigged means that when lifting an item, the disturbing combination device with a hook hanging on the article is called a rigging. 2. In terms of structural composition, hangers can be directly lifted, mainly: hooks, grabs, metallurgical fixtures, permanent magnet suction cups and special hangers. Rigged are generally composed of disturbance (steel wire rope, lifting chain, lifting belt, lifting rope, etc.) with end hanging ring, hook, unloading buckle, butterfly buckle, etc. 3. Finally, distinguish from the working load. The ultimate working load of the rigging refers to the maximum weight allowed to bear when the single-legged rigging is suspended vertically under general conditions of use. Maximum safety working load of the rigging: Except for vertical suspension, there is an angle between the lifting point of the rigging and the item, which changes the force of the rigging and allows the maximum quality to bear under a specific hanging method. It is called the maximum safe working load of the rigged. The rated lifting weight of the hanger refers to the maximum weight allowed to bear when hanging vertically under normal conditions of use.