Group 1 - The core viewpoint of the article is that Nanjing Julong (300644) is focusing on advanced composite materials, particularly in the field of carbon fiber composite structural components and assembly for drones [1] Group 2 - The company’s subsidiary, Julong Composite Materials, is dedicated to the research and development as well as the manufacturing of these advanced materials [1] - The primary application of the company’s products is in the drone sector [1]

Group 1 - The core focus of the company is on the research and production of advanced composite materials, specifically carbon fiber composite structural components and parts, as well as complete assembly [1] - The main application area for the company's products is currently in the drone sector [1]

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]