March 21，Zhang Jianlong, Deputy Director of Henan Expressway Network Management Center、Gao Lei, Director of Engineering Technology Department of Henan Communications Investment Group、Liu Ang, Director of R & D Center of Special Company of CCCC Maintenance Group、Li Xizhi, General Manager of Anxin Branch of Henan Communications Investment Group, and other leaders formed a joint research group.，Visit Gaoyuan Road Industry Group and National Engineering Research Center of Highway Maintenance Equipment to carry out winter highway maintenance equipment research。

Henan yuandong Dafang Road Maintenance Equipment Co., Ltd. under Gaoyuan Road Industry Group，The research group made a field trip, including snow removal.、Sprinkle salt、Break the ice、A series of winter road maintenance equipment including snow raising。Through communication with on-site technical personnel，Detailed understanding of the operation process of various equipment、Technical parameters、Work efficiency and application scenarios。And then，Accompanied by Liu Tingguo, Chairman of the Group，The delegation visited the National Engineering Research Center for Highway Maintenance Equipment，And hold a symposium.。Participants discussed the research and development of highway maintenance equipment in winter.、The application and future development trend are discussed in depth.。

Relying on the strong scientific research strength of the National Engineering Research Center for Highway Maintenance Equipment，Far East Dafang Brand of Gaoyuan Road Industry Group has devoted itself to management maintenance equipment for many years.，The launch of the snow removal vehicle、Wall cleaning truck、Urban guardrail cleaning vehicle and other equipment with its excellent performance，It sells well all over the country，It provides strong support for highway maintenance work.。