Road motor vehicle production; special equipment manufacturing; special equipment installation, modification, and repair; special equipment design; inspection and testing services. General items: mechanical equipment research and development; construction engineering machinery manufacturing; construction engineering machinery sales; general equipment manufacturing (excluding special equipment manufacturing); general equipment repair; special equipment manufacturing (excluding licensed professional equipment manufacturing); special equipment repair; mining machinery manufacturing; mining machinery sales; forestry and bamboo harvesting machinery manufacturing; agricultural machinery manufacturing; agricultural machinery services; agricultural machinery sales; agricultural machinery leasing; agricultural, forestry, animal husbandry, and fishery machinery parts sales; agricultural, forestry, animal husbandry, and fishery machinery parts manufacturing; specialized machinery manufacturing for agriculture, forestry, animal husbandry, sideline, and fishery; installation and repair of specialized machinery for agriculture, forestry, animal husbandry, sideline, and fishery; sales of specialized machinery for agriculture, forestry, animal husbandry, sideline, and fishery; gas compression machinery manufacturing; gas compression machinery sales; tractor manufacturing; general parts manufacturing; ferrous metal casting; non-ferrous metal casting; mechanical parts and component sales; mechanical parts and component processing; mechanical equipment sales; forestry machinery services; gear and gear reduction and transmission manufacturing; gear and gear reduction and transmission sales; bearing, gear, and transmission component manufacturing; bearing, gear, and transmission component sales; forestry and bamboo harvesting machinery sales; special equipment sales; material handling equipment manufacturing; material handling equipment sales; environmental protection special equipment manufacturing; environmental protection special equipment sales; loading and unloading; automobile parts and accessory manufacturing; intelligent robot research and development; industrial robot manufacturing; industrial robot installation, repair, and maintenance; industrial robot sales; special operation robot manufacturing; artificial intelligence industry application system integration services; information system integration services; Internet of Things technology research and development; technical services, development, consulting, exchange, transfer, and promotion; software development; safety technology training for special operations personnel; navigation terminal manufacturing; navigation terminal sales; industrial internet data services; internet data services; engineering and technology research and experimental development; information technology consulting services; information consulting services (excluding licensed information consulting services); enterprise management consulting; labor services (excluding labor dispatch); non-residential real estate leasing; automobile parts wholesale; hardware product wholesale; hardware product retail; electrical instrument sales; food internet sales (pre-packaged food only); food sales (pre-packaged food only); lubricating oil sales; electrical equipment sales; import and export of goods; technology import and export; leasing services (excluding licensed leasing services); construction engineering machinery and equipment leasing; special equipment leasing; mechanical equipment leasing; charging pile sales; intelligent power distribution and control equipment sales; internet sales (excluding goods requiring sales permits); battery manufacturing; battery sales; battery leasing; energy storage technical services; battery parts production; battery parts sales; motor manufacturing; motor and control system research and development; electric motor manufacturing; plug-in hybrid special engine sales; intelligent control system integration; industrial automatic control system device manufacturing; industrial automatic control system device sales; electrical machinery special equipment manufacturing; integrated circuit design; electronic component retail; hydraulic power machinery and component sales.