钢研高纳(300034.SZ)：公司参股公司常州极光有大尺寸3D打印相关业务

Group 1 - The core viewpoint of the article is that Steel Research High-Tech (300034.SZ) has indicated its involvement in large-scale 3D printing through its investee company, Changzhou Aurora [1] Group 2 - The company is engaged in the 3D printing business, which is a significant area of focus for its investee [1]