Mechanical and electrical equipment manufacturing; electrical equipment repair; distribution switch control equipment manufacturing; electrical equipment sales; industrial automatic control system device manufacturing; instrument sales; electrical instrument manufacturing; wire and cable management; motor manufacturing; power dynamometer motor sales; mechanical equipment sales; mining machinery sales; material handling equipment sales; special equipment sales; pump and vacuum equipment sales; gas compression machinery manufacturing; gas Sales of compression machinery; repair of general equipment; manufacturing of general equipment (excluding manufacturing of special equipment); sales of lubricants; sales of molds; sales of special chemical products (excluding hazardous chemicals); sales of metal structures; steel rolling processing; sales of building materials; sales of metal materials; sales of industrial control computers and systems; sales of gas, liquid separation and purification equipment; sales of communication equipment; sales of network equipment; sales of special environmental protection Sales of equipment; retail of hardware products; construction of landscaping projects; foreign contracting projects; construction of metal door and window projects; general mechanical equipment installation services; integrated circuit manufacturing; production of labor protection supplies; sales of labor protection supplies; sales of office supplies; sales of new energy vehicles; retail of daily household appliances; sales of refrigeration and air-conditioning equipment; sales of coatings (excluding hazardous chemicals); earthwork construction; automobile sales; dense Sales of seals; sales of daily necessities; wholesale of daily necessities; food sales (only sales of prepackaged food); sales of daily necessities; wholesale of cosmetics; retail of cosmetics; sales of daily chemical products; software sales; software development; software outsourcing services; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; information technology consulting services; information consulting services (excluding licensing information consulting services). Licensed projects: residential interior decoration; construction projects; food sales.