南京聚隆：控股子公司聚隆复材主营碳纤维复合材料加工

Group 1 - The core viewpoint of the article is that Nanjing Julong's subsidiary, Julong Composite Materials, specializes in the processing of carbon fiber composite materials, with carbon fiber being an indirect raw material [1] - The company directly procures prepreg materials, which are selected based on the performance requirements of the end products [1] - The choice of prepreg materials is determined by the strength grade of the carbon fiber used [1]