"QC/T 676-2001 Technical Conditions for Rolled Profiles and Coated Rolled Profiles for Automobile Bodies" specifies the technical requirements and test methods for rolled profiles and coated roller profiles for automobile bodies. These materials are used in automobile manufacturing, through roll processing and coating treatment, to provide structural performance and Appearance mass assurance. The standard covers the physical and chemical performance requirements of the materials to ensure that they can meet the requirements of strength, corrosion resistance, abrasion resistance and assembly in the automobile manufacturing process, so as to improve the overall mass and safety performance of automobiles.