What are the main advantages of cold-for

　　The section is economical and reasonable, saving materials. For the same weight and sectional area, the sectional coefficient of cold-formed profiles is higher than that of hot-rolled profiles. Under the same load, the weight of components can be reduced and materials can be saved. Cold formed profiles can save 38 ~ 50% of metal compared with hot rolled profiles in construction, and 15 ~ 60% of metal can be saved when used in agricultural machinery and vehicles.

　　② It can produce thin wall profiles with uniform wall thickness and complex section which can not be produced by hot rolled profiles.

　　The section size is accurate, the flatness is good, the surface is smooth and the appearance is good.

　　④ It can be matched with punching and other processes in production to meet different needs. With the decrease of the price of cold rolled and hot rolled strip steel, the production of cold formed sections has been developed, the variety has increased, the degree of continuous automation has been improved, and the forming speed of roller cold bending machine has reached the highest 250m per minute.