The registration address of the precision hardware processing plant in dongcheng, dongcheng city, is located in room 101, east pocket phoenix road, dongcheng township, guangdong province. The registration authority is the market supervision authority of dongcheng city, represented by the legal person zhang yong-jin, and operates in the following areas: research and development, production and processing of hardware, mould steel, plastics, electronics, mechanical spare parts and mechanical equipment。