Beijing land science and technology ltd., with its registered address in room 104, on the 1st floor, building 5th floor, hong an road, beijing city house, is the beijing city house mountain market supervision authority, represented by legal persons and including technology development, technical advice, technology transfer, technology promotion, technical services; model design, product design; computer graphic design, production; professional contracting; exhibition performance; software development; computer animation design; photographic video services; computer system integration; sale of metal products, electronics, computers, soft hardware and assistive equipment; engineering design; engineering survey. (the subject of the market may, in accordance with the law, freely choose to operate projects and carry out business activities; projects which are subject to legal approval and which are subject to the approval of the relevant sector; and activities in which the state and muni...