When lifting chains rust, it is important to maintain them. The material of the lifting chain is manganese steel. Lifting chains will oxidize and rust after a period of use. There are many surface treatment methods for lifting chains, such as original color polishing with anti-rust oil applied to delay rusting. Galvanizing and blackening treatments not only serve aesthetic purposes but also prevent rusting. Lifting chains have a wide range of applications and can be treated differently according to customer requirements. For example, they are mostly treated with blackening when used on hoists. To reduce costs, original color polishing may also be used.