Beijing zhongtai science and technology ltd. Is registered at no. 81, dai hinggung township, ping valley district, beijing. The registration authority is the market supervision authority of ping valley district, beijing. It is represented by a legal person and includes technical development, technical advice and technical services; sale of mechanical equipment, electronic accessories, hardware, hardware, instrumentation forms, office supplies, auto parts, electronics, household appliances, building materials, chemical products (without hazardous chemicals and a class of vulnerable chemicals). (an enterprise shall, in accordance with the law, freely choose to operate its own projects and carry out its activities; an approved project shall, in accordance with the law, operate its activities in accordance with the approved content, subject to the approval of the relevant sector; and it shall not engage in activities in which the industrial policy of the municipality prohibits or restricts the operation of projects of its kind