Sanitation
| Sat 19 Sep 2026
Beijing, Sept. 19 -- State Intellectual Property Office of China has awarded a patent to Gansu Wandejia Tech Co Ltd for Rural Environment-friendly Water-saving Light Steel Pit Toilet. Wang Jianhong, Wang Xu, Zhang Zhaobo, Lei Zaocheng, He Yanjun, Fan Xiurong, Yang Lijuan, Zhang Jiangnan, Yang Nengneng, Sun Jinzhen, Lee Ho-hak, D..