商业航天产业加速，关注3D打印服务商、关键结构件、太空光伏产业链

Investment Rating - The industry investment rating is "Leading the Market - B" [4] Core Insights - The commercial aerospace industry is accelerating, with a global aerospace economy projected to reach $612 billion by 2024, of which commercial aerospace revenue will be $480 billion, accounting for 78%. The annual compound growth rate for global commercial aerospace from 2015 to 2024 is 7.7%, while China's is 22.5% [1] - The technology route for reusable liquid oxygen-methane fuel has been established, and 3D printing is widely applied in the industry. Liquid rockets are more suitable for aerospace due to their stronger carrying capacity, and the trend is towards reusable large-thrust liquid oxygen-methane rocket engines [1][2] - The solar wing technology is expected to empower space computing, with flexible solar wings becoming a core infrastructure for high-power satellites. The main battery materials include silicon-based, flexible thin-film gallium arsenide, and perovskite, with perovskite showing significant future application potential due to its low cost and high efficiency [3][8] Summary by Sections Commercial Aerospace - The commercial aerospace sector is dominated by the US and China, with both countries completing the majority of global rocket launches. The number of launches is on the rise, with China applying for frequency resources for over 200,000 satellites by December 2025 [1] 3D Printing Applications - Leading 3D printing companies like Platinum and Huazhu High-Tech have successfully implemented solutions in the commercial aerospace sector, providing comprehensive metal additive manufacturing technology support for key components of rockets [2] Solar Power in Space - The solar wing technology, featuring high-efficiency solar cells, is crucial for providing reliable energy to satellites. Flexible solar wings are identified as essential for the high-power satellite era, with various materials being explored for their efficiency and cost-effectiveness [3][8] Investment Recommendations - It is suggested to focus on core components and 3D printing companies such as Jiangshun Technology, Huazhu High-Tech, Shaoyang Hydraulic, Chaojie Co., and Platinum. Additionally, attention should be given to perovskite and crystalline silicon photovoltaic equipment suppliers [9]