Sanitation
| Tue 04 Aug 2026
Beijing, Aug. 4 -- Tianjin Huantong Pipeline Cleaning Co Ltd has received a patent for Cleaning Physical Wave Generating Device. This invention was developed by Xue Zhaowang, Hu Jiandong, Xue Zhaoquan, Sun Zhongfu, Ren Guoying, Wen Hongwei, Yu Huiyang, Chang Hua, Wang Jingyin, Li Lei and Zhang Na.
The patent application numbe..