Construction
| Wed 02 Sep 2026
Beijing, Sept. 3 -- China Construction Fifth Engineering Division and FD Petrol Group Company have been awarded a patent for Pressure Testing Device for Dense Paste Conveying Pipeline. This invention was developed by Zhang Hongbo, Yang Zihan, Chen Ze, Chu Qingping, Wei Wei, Zhang Peng, Li Maosheng, Li Jing, Li Zheng, Zhang Ailin..