Chemicals
| Fri 04 Sep 2026
Beijing, Sept. 4 -- State Intellectual Property Office of China has awarded a patent to Chengdu Chron Chemicals Co Ltd for Electronic-grade Hydrofluoric Acid Production System. Wang Yongsheng, Qin Lei, Li Ping, Yao Guofeng, Tang Guangqian, Zhi Lijun, Peng Wei, Feng Qiangqiang, Wu Guoyong, Liang Chengfu, He Gang, Zhang Shijun, Zu..