Road motor vehicle production; special equipment design; special equipment manufacturing; Class II medical device production; Class III medical device production; Class III medical device sales. General items: Automobile sales; new energy vehicle sales; moped manufacturing; special equipment sales; special equipment manufacturing (excluding licensed professional equipment manufacturing); automotive parts and accessories manufacturing; automotive parts wholesale; automotive parts retail; non-road leisure vehicle and parts manufacturing; non-road leisure vehicle and parts sales; Class I medical device production; Class I medical device sales; Class II medical device sales; lubricating oil sales; import and export of goods; import and export of technology; non-residential real estate leasing; battery sales; conference and exhibition services; leasing services (excluding licensed leasing services); electric vehicle charging infrastructure operation; charging pile sales; new energy vehicle battery swap facility sales; building material sales; technical services, technical development, technical consulting, technical exchange, technology transfer, technology promotion.