北化股份：公司全资子公司防化装备研究院研制生产的航天员用防毒面具等产品可用于航空航天

Core Viewpoint - The company has developed products for the aerospace sector, including astronaut protective gear and purification devices [1] Group 1: Company Products - The company's wholly-owned subsidiary, the Chemical Defense Research Institute, manufactures astronaut gas masks, protective masks, purification devices, and specialized protective clothing for aerospace applications [1]