It is an aluminum alloy with magnesium and silicon as alloying elements. Generally speaking, it has good mechanical properties and can be heat treated and welded. It is the most commonly used aluminum alloy. The aluminum alloy tool case is made of aluminum alloy material as the framework, ABS, density board (medium fiber board), plywood (multilayer board), etc. as the panel, and the tee, mouthpiece, handle, lock, etc. are combined as accessories. The box body, because of its reasonable design structure, meticulous professional workmanship, strong load-bearing capacity, durability, beauty and other characteristics, has a wide range of applications in packaging and other industries, mainly for foreign applications. The rise of the industry, especially the factors required by the ISO industry, pursue the integrity of product packaging and transportation, and the application of aluminum alloy tool cases has also increased.