Tools and Machinery
| Fri 09 Jan 2026
Alexandria, Jan. 10 -- Ccteg Chongqing Res Institute Co Ltd has been granted a patent for Combined Drilling System with Double Rotary Driving Devices and Control Method Therefor. Chen Hang, Xin Dezhong, Wan Jun, Yang Lin, Liu Xiaohua, Xiao Yuqing, Pu Jian, Zhang Shizhai, Tang Min, Lv Jinjun, Ma Zhengang, Wan Yuan, Dou Xin, Zhou ..