Energy
| Wed 21 Oct 2026
Beijing, Oct. 21 -- State Intellectual Property Office of China has awarded a patent to Hangzhou Chenrui ASU Manufacturing for Efficient Energy-saving Nitrogen Making Machine. Li Qing, Li Zhen, Lu Junjun, Wu Yutao, Jiang Chengtao, Wang Yongjian, Sheng Yihai, Fang Enwei, Sun Zhiqiang, Sun Liangjun, Huang Mei, Peng Xuxia and Tang ..