Aluminum alloy material. The main alloy elements are magnesium and silicon, with excellent machining performance, excellent weldability, extrusion and electroplating, good corrosion resistance, toughness, easy to polish, color film, excellent anodic oxidation effect, is a typical extrusion alloy. aluminum alloy profile with its good plasticity, moderate heat treatment strength, good welding performance and anodic oxidation treatment, gorgeous surface color and many other advantages, is widely used in building profiles, irrigation pipes, for vehicles, platforms, furniture, elevators, fences and other tubes, bars, profiles.