Cold rolled steel has good performance, that is, through cold rolling,a thinner thickness,higher precision cold rolled strip and plate can be obtained,with high straightness, high surface finish, clean and bright surface of cold-rolled sheet, and easy coating.It also has high stamping performance and non-aging, low yield point, so cold rolled steel has a wide range of uses, mainly used in automotive, printing iron barrels, construction, building materials and other industries.It is also the best choice for the production of organic coated steel.