The registration address of hebei hun sen engineering ltd. Is located at no. 77 of the guangchon town development area in guangchuan county, aquaculture city, hebei province, and is represented by the city's market supervision authority. The legal entity is zheng xian liang, which operates on general items: construction of communications equipment; sale of communications equipment; construction of metal structures; sale of metal structures; manufacture of specialized equipment for environmental protection; sale of specialized equipment for environmental protection; manufacture of fibreglass enhanced plastics; sale of fibreglass enhanced plastics; manufacture of non-metal mineral products; sale of non-metal minerals and products; repair of metal products; repair of general-purpose equipment; repair of specialized equipment; installation of general machinery equipment; technical services, technology development, technical advice, technology exchange, technology transfer and technical promotion. (a) licensing of projects (in addition to those subject to legal authorization, operating on an autonomous basis under an operating licence): construction work (except construction of nuclear power plants, construction of civilian airports). (a project subject to legal approval may only be carried out with the approval of the relevant department, subject to the approval documents or licences of the relevant department)