The registration address of beijing zenghua science and technology ltd. Is located on the 7th floor of the first floor of the 56th street of south farshin township, hong kong city, beijing. The registration authority is the market supervision authority of the hong kong district of beijing. The legal person's representation is far-reaching: technical services, technical development, technical advice, technical exchange, technology transfer, technical promotion; rental of machinery and equipment; rental of minibus rental services; professional design services; conference and exhibition services; external engineering; industrial engineering services; engineering services; retail sale of computer hardware and software and assistive equipment; sale of teaching equipment; distribution of teaching models and teaching aids; sale of electronic products; import and export of goods; technical import and export agents; sale of office equipment; retail sales of handicrafts and collections (except for elephants and their products); computer system services; sale of broadcasting video equipment; sale of new vehicles; sale of used vehicles; retailing of vehicles; sale of electrical appliances; sale of cameras and equipment; retailing of lamps; sale of lightware; sale of boxes; retailing of handicrafts; commercial engineering, other than as authorized by law; construction activities; construction of (a project subject to approval by law may only be carried out with the approval of the relevant department, depending on the documents or licences approved by the relevant department) (no activity shall be carried out in the category of projects prohibited and restricted by the state and municipal industrial policy