The registration address of shenzhen city tetsheng science and technology ltd. Is 9 103-a in the people's landing, people's landing, honghua district, shenzhen city. The registration authority is the longhua regulatory board of the shenzhen market supervision authority. The legal person is represented by liu wenzheng. It operates in the areas of leds, audio-sounding services at the door installation and commissioning of sound; microphones, handing equipment, electronics systems, smart electronics, electronics devices, sound devices, stage light equipment, communications equipment, hardware, hardware, appliances, household appliances, smart systems, medium control systems, distribution of furniture (excluding recycling operations); engineering technology development services; network technology development; e-commerce; investment advice (without securities, futures, insurance and other financial operations, restricted projects); domestic trade; and import and export of goods and technology. (except for projects prohibited by law, administrative regulations; projects restricted by law, administrative regulations require permission to operate) none