Sales of electrical equipment; sales of mechanical equipment; sales of electronic products; retail of hardware products; retail of computer software, hardware and auxiliary equipment; sales of metal materials; manufacturing of metal materials; sales of building materials; manufacturing of lightweight building materials; sales of chemical products (excluding licensed chemical products); production of chemical products (excluding licensed chemical products); auto parts Retail; wholesale of automobile parts; manufacturing of motorcycle parts; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; foreign contracting projects; mechanical equipment leasing; maintenance of electronic and mechanical equipment (excluding special equipment); repair of special equipment; repair of general equipment; import and export of goods; import and export of technology; import and export agency. (You are not allowed to engage in business activities that are prohibited or restricted by national and municipal industrial policies.)