Lifting chains have a high tensile strength, with the standard load capacity for a 6-millimeter lifting chain being 1 ton. They are often used as components of lifting tools, such as chain hoists and ring chain rigging equipment. They can also be used as transmission chains, like in scraper machines. After manufacturing, lifting chains are polished to their original color and then undergo surface treatment according to customer requirements. The diameter of the round steel of the chain is abbreviated as the specification of the chain, such as 6-millimeter lifting chain, 8-millimeter lifting chain, 10-millimeter lifting chain, etc. For larger sizes, there are 20-millimeter lifting chains. Other parameters of the chain can be found in the parameter table. For manual and electric hoists, the surfaces are commonly treated with blackening, but some are also polished or galvanized.