2013.06.30
Optical Fibers of YOFC Passed Factory Test in Newly-Built Optical Fibre Route Project of China Unicom Long-distance Transmission Network
On the morning of May 23, 2013, the executives and relevant technicians of China Unicom, China Unicom Heilongjiang Branch, China Unicom Gansu Branch, CITCC 1st Engineering, Heilongjiang GAMMA Telecom Engineering, Huaxia P&T Project Consultation and Management, Zhongxin Supervision Company and