"Beijing Municipal Road and Bridge Holdings" is the initiator and organizer of four professional associations in the national municipal industry; Entrusted by the Ministry of Construction and the Municipal Construction Committee, he presided over the compilation of a number of national, industrial and local standards; In the national construction engineer qualification examination organized by the Ministry of Construction and the Ministry of Personnel, he undertakes the compilation of teaching materials and teacher training for municipal public works. It has two professional design institutes and 1 professional research institutes, a "municipal enterprise technology center" recognized by the municipal government and its own expert team composed of 36 national and Beijing "outstanding contribution experts", leading the research and development of technologies such as roads and bridges, water supply and drainage, underground engineering, concrete and pavement materials, forming a scientific and technological development system with scientific research institutes as the main body, technical committee decision-making, technical consultancy and technical center implementation.