The registration address of the city of duncho is in room a, room 1116 of the internet building, huenchu city, where the registration authority is the city's market supervisory authority, represented by a legal person, and includes general projects: technical services, technology development, technical advice, technology exchange, technology transfer, technology promotion; sale of electrical equipment; sale of electrical equipment; electrical and electrical equipment; electrical and cable operations; sale of daily glass products; sale of rubber products; sale of plastic products; sale of communications equipment; sale of metal materials; sale of high-performance non-ferrous metals and alloyed materials; sale of warmer materials; sale of construction water-proof products; sale of machinery spare parts, spare parts; retail sale of hardware products; sale of construction materials; sale of sanitary and cleaning materials (in addition to legally authorized projects, operating autonomously under a licence)