钢研高纳：参股公司常州钢研极光涵盖增材制造、3D打印等业务

Group 1 - The core viewpoint of the article is that Steel Research High-Tech (钢研高纳) has a stake in Changzhou Steel Research Aurora, which is involved in additive manufacturing and 3D printing, applicable in the aerospace sector [2] Group 2 - The company emphasizes its involvement in advanced technologies such as additive manufacturing and 3D printing [2] - The applications of these technologies are particularly relevant to the aerospace industry, indicating potential growth opportunities [2]