Manufacturing of auto parts and accessories; Manufacturing of handcarts and animal-drawn vehicles; Research and development of auto parts; Manufacturing of non-road leisure vehicles and parts; Retail of auto parts; Wholesale of auto parts; Sales of non-road leisure vehicles and parts; Manufacturing of intelligent in-vehicle equipment; Sales of handcarts and animal-drawn vehicles; Research and development of metal products; Sales of mechanical parts and components; Sales of molds; Wholesale of hardware products; Sales of rubber products; Manufacturing of plastic products; Sales of electronic products; Sales of daily-use miscellaneous items; Sales of daily necessities; Sales of metal products; Import and export of goods; Technology import and export; Sales of Class II medical devices; Motor vehicle repair and maintenance; Power generation technical services; Motor vehicle towing, rescue, and obstacle removal services. Permitted items: Road motor vehicle production; Special equipment manufacturing; Power generation, transmission, and distribution (supply) business.