This C919 model is a replica product specially designed for B2B customers, strictly following the design specifications of the C919 real machine, restoring the size, appearance details, and structural features of the body, and possessing both display value and practical functions. The model body is made of aviation grade aluminum alloy composite material, with reasonable weight control, which not only ensures structural stability, but also facilitates handling and installation, and can adapt to the placement needs of different scenarios. The surface has undergone multiple fine treatments, and the errors in details such as rivets and seams are controlled within a very small range, making it almost impossible for the naked eye to distinguish the differences from the real machine. This model can be widely applied in aviation exhibition halls, corporate brand promotion, vocational skills training and other scenarios. It can be used as a science popularization exhibit to convey aviation culture, as well as as as a practical teaching aid to assist teaching.