Chemicals
| Thu 25 Dec 2025
Beijing, Dec. 26 -- Shijiazhuang Fengshan Chemical has received a patent for Nitrate Drying Device. This invention was developed by Wang Qianyue, Zhang Dongnan, Song Yanmei, Jin Guodong, Zhao Yongliang, Wu Zhijun, Gao Lina, Liu Lan and Gao Chunyu.
The patent application number is CN202323627360U 20231229. The patent publicati..