The 80 -level lifting chain is a loop with a heavy chain, which is made of manganese steel. Use fully automatic equipment and welding. The lifting chain material uses 20MN2 alloy structure steel. Also known as manganese steel chain. Contains metal elements such as carbon, manganese, chromium, copper, etc. It is characterized by good hardness, small volume, and good carrying capacity. The maintenance of the lifting chain is very important for the chain. This is like cars that need to be maintained regularly. Maintenance can make the chain longer, and inspection can timely reduce the damage of the chain. After use, check whether the surface of the chain is adhered to debris, and clean up the surface of the chain in time. And according to the situation, rust oil on the chain. After long -term use, the chain must check whether the chain has deformed extension, distortions, cracking and other phenomena. Check whether the activity between the ring and the ring and the connector between the ring and the ring and the connector is flexible. The chain is cracking, severe deformation, or the phenomenon of the card chain card butterfly buckle.