The registration authority is the market supervision authority of the changping district of beijing, represented by legal persons, including professional contractors; engineering project management; sale of automation equipment, electronics, hardware, instrumentation, metal materials, office equipment, construction materials; development of automation equipment technology, technical advice, technical services; and computer technology training. (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