This C919 model is strictly replicated based on the design parameters of the C919 real machine, fully restoring the aerodynamic layout, body contour, and detailed features of the real machine, and adapting to various application requirements in B2B scenarios. The model is made of aviation grade composite materials, and the shell is treated with multiple fine spraying processes to maintain the same color as the real machine. The surface texture is clear and distinguishable, balancing texture and durability. The body structure is stable, and details such as body coating and identification can be customized according to needs to meet the display and usage needs of different enterprises. This model is widely used in aviation science popularization exhibition halls, corporate image displays, vocational college teaching and training scenarios. It can not only visually present the design essence of the C919 aircraft, but also serve as a teaching aid to assist aviation related teaching. We provide comprehensive customized services and after-sales support, and can adjust details according to specific customer needs to ensure product quality and delivery time, helping enterprises achieve diversified goals such as display and teaching.