Licensed project: road freight transport; Import and export of technology; import and export of goods (for projects subject to approval according to law, business activities can be carried out only after approval by relevant departments, and the specific business projects shall be subject to the approval results) General items: Generator and generator set manufacturing; motor manufacturing; Research and development of motor and its control system; mechanical and electrical equipment manufacturing; Electrical equipment repair; new energy prime mover equipment manufacturing; Pump and vacuum equipment manufacturing; gas compression machinery manufacturing; General equipment manufacturing (excluding special equipment manufacturing); General equipment repair; pump and vacuum equipment sales; Electrical equipment wholesale; building materials production machinery manufacturing; Steam turbine and auxiliary machinery manufacturing; non-ferrous metal alloy manufacturing; Non-ferrous metal casting; solar thermal utilization equipment sales; Solar thermal power generation equipment sales; computer hardware and software and auxiliary equipment wholesale; Hardware products wholesale; hardware products retail; Hydraulic power machinery and components manufacturing; Automobile sales (except for the items subject to approval according to law, the business activities shall be carried out independently according to law with the business license)