新型号技术成熟叠加后市场格局改变，航发产业有望迈入全新发展阶段

Investment Rating - The industry investment rating is maintained as "Positive" [4] Core Viewpoints - The appointment of Zhang Yujin as the chairman of AVIC Engine Group indicates a potential return to high growth for the engine sector, with a broad market outlook [3][7] - The core technologies in the aviation engine industry are maturing, and the pressure on profitability from high investment in model development is expected to ease [7] - The maintenance, commercial aviation, and gas turbine sectors are opening up broader development opportunities for the aviation engine segment [7] Summary by Relevant Sections Industry Overview - The aviation engine industry has made significant progress over the past five years, achieving independence from imported engines for military applications and actively participating in the development of domestic commercial engines [7] Market Dynamics - The demand for weaponry and equipment is expected to expand due to ongoing international tensions, which will benefit the military trade market [6] Investment Recommendations - The report suggests focusing on specific segments within the aviation engine industry, including maintenance, commercial aviation, and gas turbines, as they present substantial growth potential [3][7] - Listed companies under AVIC Group include AVIC Power (600893), AVIC Control (000738), AVIC Technology (600391), and AVIC Materials (688563) [7]