Chemicals
| Mon 28 Sep 2026
Beijing, Sept. 28 -- Chinese Patent for Chemical Anti-blocking Valve Convenient to Replace has been issued to Tangshan Gongchuang Environmental Protection Tech Service Co Ltd. This invention was developed by Yu Guotao, Zhang Jiancheng, Zu Haikun, Liu Yuhe, Han Lei, Lu Huan, Dong Xiao, Sun Hao, Li Weigang, Zhang Bin, Lee Jiyoung,..