Shenzhen city science and technology company ltd. Has registered addresses in 117 of 201 public and private industrial cities in shenzhen city. The registration authority is shenzhen city market supervisory authority, and the legal person's representative is shenzhen. This includes electronic products, led\lcd products, audio-visual products development, sale and maintenance; installation of electronic display screens; sound engineering, network wiring; sale of electronic metaware, multimedia products, computer software and hardware, spare parts, electromechanical and electrical equipment, hardware and power delivery; rental of own equipment; lease of own house; import and export of goods and technology