南京聚隆：控股子公司聚隆复材专注于先进复合材料应用的研发与生产制造，目前主要应用于无人机领域

Group 1 - The company has a subsidiary, Julong Composite Materials, focused on the research and production of advanced composite materials [2] - The main business of the subsidiary includes carbon fiber composite structural components and assembly of complete machines [2] - Currently, the primary application of the company's products is in the field of drones [2]