The standard load of the 10 mm lifting chain is 3 tons. Customers who make ring -chain gourds often use this specification. The surface treatment is mostly black, so that the overall appearance of the gourd is better. The material uses 20mn2 alloy structure steel. Contains metal elements such as carbon, manganese, chromium, copper, etc. It is characterized by good hardness, small volume, and good carrying capacity. It should be noted that the chain also needs to be maintained. After the work is completed, the surface of the chain should be cleaned in time. You need to store in a dry environment when saving.