Automotive engine assembly wholesale; Auto parts wholesale; Sales of electric accessories for new energy vehicles; Lubricating oil sales; Machinery and equipment leasing; Machinery and equipment sales; Hardware wholesale; Sales of electronic products; Auto parts retail; Computer hardware and software and auxiliary equipment wholesale; Charging pile sales; Sales of metal chains and other metal products; General equipment repair; Metal material sales; Sales of electrical and mechanical equipment; Sales of power electronic components; Sales of new metal functional materials; Information technology consulting services (except for the projects subject to approval according to law, independently carry out business activities according to law with the business license)