Tools and Machinery
| Thu 17 Sep 2026
Beijing, Sept. 16 -- Lianyungang Navigation Mark Div of Donghai Navigation Safety Administration Dnsa Mot has been awarded a patent for Water Navigation Mark Lifting Device. This invention was developed by Xu Rui, Cheng Shengnan, Liu Yang, Wu Qijiang, Wang Xinhuo, Wu Yihui, Zou Xiangyan, Zhang Hailong, Fan Zihao, Liu Fengyuan, X..