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 China Information Technology Designing & Consulting Institute attended the YOFC factory test in the newly-built optical fibre route project of Lanzhou-Jiayuguan, Suihua-Harbin in China long-distance transmission network and extension section in China of Sino-Russia Heihe International Transmission System.

They visited the optical fibre & cable workshop of YOFC before testing and inspecting the optical cables as required in the contract signed with China Unicom. And all the optical cables of YOFC passed the factory test.

On May 24, 8 new engineers of China Information Technology Designing & Consulting Institute made academic exchanges with the staff of YOFC Marketing Department and R&D Center about the optical fibre & cable technologies of YOFC. In the process, the engineers were deeply impressed by the professionalism, precision and innovation of YOFC staff.