The registration address of beijing huatai ark science and technology ltd. Is located on the 6th floor of building 5 of chaoyang road 3 in beijing city, and its legal representative is liu yunxia, the market supervision authority of beijing city hoangyang district, which operates on general items: technical services, technology development, technical advice, technology exchange, technology promotion; sale of sound equipment; sale of lighting equipment; manufacture of radio and television equipment (without radio and television transmission equipment); sale of radio and television transmission equipment; sale of radio and television equipment; professional repair of radio and television equipment; sale of cameras and equipment; video and video production services; sale of teaching equipment; sale of teaching models and teaching aids; retailing of stationery supplies; retailing of sports and equipment; distribution of information systems; maintenance services for the operation of info...