The 80 level lifting chain, also known as the circular ring lifting chain, is produced according to the EN818-2 production standard. It undergoes wire drawing annealing, weaving machine, welding machine, straightening machine, medium frequency heat treatment, and 2.5 times the test load for public tensile testing. Each batch is tested with 4 fracture tests. As the name suggests, a circular chain is circular, unlike a flat chain. A flat chain is similar to the transmission chain used on bicycles. Circular chain is mainly used for lifting, lifting slings, hoist lifting chains, and some are also used for chain wheel drive. The processing techniques for lifting chains include polishing, blackening, galvanizing, electrophoresis, Dacromet, etc. You can choose the surface treatment process for the lifting chain according to your own usage needs.