General equipment manufacturing (excluding special equipment manufacturing); electronic special equipment sales; auto parts and accessories manufacturing; auto parts wholesale; new energy vehicle sales; new energy vehicle electrical accessories sales; new energy vehicle battery swapping facility sales; new energy vehicle production and testing equipment sales; new car sales; used car sales; auto parts retail; auto decorative supplies sales; second-hand car distribution; motor vehicle modification services; tire sales; mechanical and electrical equipment manufacturing; testing machine sales; hardware product wholesale; hardware product retail; pneumatic and electric tools Sales; sales of electrical machinery and equipment; wholesale of motorcycles and spare parts; retail of motorcycles and spare parts; sales of special ceramic products; sales of metal materials; sales of bearings; sales of daily necessities; sales of special equipment for environmental protection; sales of first-class medical equipment; sales of second-class medical equipment; retail of second-class medical equipment; retail of protective equipment for medical staff; retail of medical masks; wholesale of protective equipment for medical staff; wholesale of medical masks; sales of lubricants; sales of gifts and flowers; advertising design, agency; advertising production licensing projects: technology import and export; goods import and export