About Profile Suppliers

The current national standard for aluminum alloy profiles was GB/T 5237.4-2017 “ Wrought aluminum alloy extruded profiles for architecture -- Part 4: Powder coating Profiles”, published by China Standard Publishing House. The current national standard GB/T 5237.4-2017 is an upgrade from the national standard GB/5237.4-2008.

The National Standard of the People's Republic of China · Wrought aluminum extruded profiles for Architecture -- Part 4: Powder coating profiles. (GB / 5237.4 2008) is a reference in Europe Qualicoat 11th edition of the architectural aluminum surface film, powder layer quality mark certification rules, the American association of building manufacturing AAMA2603-2005 "aluminum extrusion materials, organic polymer coating performance requirements and test methods, AAMA2604-2005 aluminum extrusion materials, plank of high-performance organic polymer coating performance requirements and test methods, AAMA2605-2005 (aluminum extrusion materials, plate of high performance organic polymer coating performance requirements and test methods", British BS6496 -- 1984 Revised standards such as "Organic powder Coating on Aluminum Surface of Building Exterior Parts".

China's aluminum alloy enterprises supply profiles are up to the national standard, otherwise it will not be listed in circulation. The above-mentioned Chinese aluminum alloy enterprises are state holding companies or groups with a long history or listed companies, all with ISO9001 quality certification, the profile quality is guaranteed.

GB/T 5237.4-2017  Wrought aluminum alloy extruded profiles for architecture -- Part 4: Powder coating Profiles

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