Enviornmental
| Fri 17 Apr 2026
Beijing, April 17 -- Shishi Hongfeng Env Bio Engineering Co Ltd has been granted a patent for Weighing and Adding Device for Solid Waste Flue Gas Purification Chemicals. Wu Zhida, Liang Tianwen, Tong Zexing, Zheng Shiyou, Chen Shiming, Cheng Dong, Lin Musen, Liu Tao, Huang Yikai, Bi Yanhua, Tian Jinyin, Zheng Yinyin, Chen Changq..