Beijing zhengyang technology ltd. Is registered at 13th floor, unit 1323, building 87th floor, west road, changping city, beijing. The registration authority is the market supervision authority of changping district, beijing. It is represented by a legal person and includes scientific promotion and technical services; sale of mechanical equipment, hardware and equipment without electric bicycles, cultural supplies, computer software and hardware and assistive equipment, electronics, communications equipment, household appliances, construction materials, clothing and footwear hats, needle textiles, chemical products without dangerous chemicals, steel. (the subject of the market may, in accordance with the law, freely choose to operate projects and carry out business activities; projects which are subject to legal approval and which are subject to the approval of the relevant sector; and activities in which the state and municipal industrial policy prohibits and restricts such projects