崧盛股份(301002.SZ)：重庆精刚为公司的参股公司，其主要面向航天航空领域供应谐波减速器等相关部件

Group 1 - The core viewpoint of the article is that Congsheng Co., Ltd. (301002.SZ) is making a strategic investment in Chongqing Jingang, a company that supplies harmonic reducers and related components primarily for the aerospace sector [1] - Chongqing Jingang's main clients include aerospace research institutes, the Aerospace Corporation, and several well-known private commercial aviation customers [1] - The company plans to increase its investment by 20 million yuan by October 2025 to assist in expanding the product line and capacity in the industrial sector, focusing on the development of harmonic reducers for industrial robots and rotary joint reducers for humanoid robots [1]