Measurement & Testing
| Mon 31 Aug 2026
Beijing, Aug. 31 -- JSTI Group and The Expressway Operation & Man Center of Jiangsu Province have obtained a patent for handheld bolt knocking detection device. This invention was developed by Zhou Yu, Zhao Zishun, Tong Hao, Fan Jie, Lin Feng, Ruan Xianhu, Cao Xuekun, Xie Junxian, Xiao Fei, Yan Chang, Liu Duo and Zhang Jiandong...