Sanitation
| Tue 04 Aug 2026
Beijing, Aug. 4 -- Shougang Jingtang United Iron & Steel has obtained a patent for cleaning device. This invention was developed by Liu Hang, Liu Zhanfeng, Li Bin, Xiao Huasheng, Yang Chunbao, Wang Baodong, Wang Leichuan, Li Feng, Zhao Luming, Wu Yanjie, Yao Anqi, Zhang Zhiquan, Guo Yingze, Chen Hongze and Wang Hongtu.
The pa..