Pipe
| Mon 10 Aug 2026
Beijing, Aug. 11 -- State Intellectual Property Office of China has awarded a patent to Chongqing Chuanjiu Mining Construction Co Ltd for Vertical Shaft Suspension Pipeline Combined Hoop. Liu Kang, Xue Shiyan, Li Lin, Yang Gang, Huang Chongjian, Ko Woon-tae, Xu Jie, Huang Zixing, Zhu Ling, Feng Qin, Liu De, Zhang Di and Cheng Ya..