What is the surface treatment of the lifting chain? The surface treatment of the lifting chain can be treated differently. Commonly polished, black, galvanized, and electric. After the production of the lifting chain is produced, there will be burrs, and polishing can make the surface of the chain smooth and shiny. Darkness is to handle the chain surface by physical cooking, which can delay the rust of the chain. The surface of galvanized chain is bright to prevent rust. The surface treatment of the chain can be done according to the requirements.