The registration address of zhang zhang jiehue, is the market supervisory authority of changping district, beijing, with legal representatives, and includes technical development, technology promotion, technology transfer, technical advice, technical services; computer system services; data processing (the pue value is below 1. 4); basic software services; application services (without medical software); sales of computers, software and assistive equipment, electronics, mechanical equipment, communications equipment, five-gold power (other than electric bicycles), chemical products (other than hazardous chemicals), cultural supplies, sports supplies, photographic equipment, building materials, fire protection equipment, safety technical safety products, furniture, metals, plastics, glass products, daily supplies, needle textiles; economic information advice (other than intermediate services); and software development. (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