GB/T 12754-2006 "Color coated steel plates and steel strips" standard stipulates the terms and definitions, classification and code, size, shape, weight, technical requirements, inspection and test, Encasement, marking and mass certificate of color coated steel plates and steel strips. This standard is applicable to color coated steel plates and steel strips for internal and external purposes of buildings, including reference use of Coated steel for household appliances and Miscellaneous purposes. The standard covers different substrate types and coating surface conditions, providing detailed order content requirements, such as product name, grade, specification, size, coating structure, finish coating type and Color, etc. Technical requirements include specific requirements for mechanical properties, substrate type, Coating thickness, coating color difference, Glossiness, coating Hardness, Flexibility, adhesion and durability to ensure coating Stability and durability in various environments.