The registration address of shenzhen city cheng jie-tech, ltd., is located on the 18th floor of the gyming road, located in shenzhen city, on the 18th floor, with the registration authority of the shenzhen market supervisory authority and with the legal representation of zhang jie, covering computer software and hardware, face recognition products, software technical advice and sales; development and sale of electronic products; sale of smart computers, smart home-based equipment; sale of smart education combinations, smart conference combinations, smart interactive sets, ops computer search machines, liquid crystal wall, web adverts, sale of led full paint screens; domestic trade; and import and export of goods and technology. Electronics sales; technical services, technology development, technical advice, technology exchange, technology transfer, technology promotion; wholesale distribution of computer software and hardware and assistive equipment; retailing of computer hardware a...