Wire and cable manufacturing; road cargo transportation (excluding dangerous goods). General projects: manufacturing of special ceramic products; sales of special ceramic products; manufacturing of unsealed glass shells and other glass products; manufacturing of technical glass products; sales of technical glass products; operation of wires and cables; manufacturing of power facilities and equipment; sales of power facilities and equipment; manufacturing of high-performance fibers and composite materials; sales of high-performance fibers and composite materials; manufacturing of glass fiber reinforced plastic products; sales of glass fiber reinforced plastic products; manufacturing of power transmission and distribution and control equipment; research and development of distribution switch control equipment; manufacturing of distribution switch control equipment; manufacturing of distribution switches Sales of control equipment; manufacturing of electrical equipment; sales of electrical equipment; manufacturing of capacitors and supporting equipment; sales of capacitors and supporting equipment; manufacturing of electrical accessories; sales of electrical accessories; sales of intelligent power transmission and distribution and control equipment; manufacturing of power electronic components; sales of power electronic components; manufacturing of electronic components; manufacturing of fasteners; sales of fasteners; non-ferrous metal rolling processing; sales of high-performance non-ferrous metals and alloy materials; manufacturing of power transmission and distribution monitoring and control equipment; sales of power transmission and distribution monitoring and control equipment; metal standards for transportation and public administration Brand manufacturing; sales of signs for transportation and public administration; leasing of non-residential real estate; import and export of goods; software development; sales of office equipment; wholesale of computer software, hardware and auxiliary equipment; retail of computer software, hardware and auxiliary equipment; sales of electrical equipment; sales of mechanical equipment; sales of household appliances; wholesale of auto parts; wholesale of hardware products; retail of hardware products; sales of instruments and meters; sales of building materials; sales of building decoration materials; sales of fire-fighting equipment; wholesale of electronic components; sales of metal products; sales of labor protection supplies; stationery Wholesale; retail of stationery; sales of furniture; retail of daily household appliances; sales of chemical products (excluding licensed chemical products); sales of communication equipment; sales of metal materials; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; mechanical equipment leasing; office equipment leasing services; industrial design services; general equipment repair; special equipment repair; electrical equipment repair; research and development of intelligent robots; intelligent robot sales; advertising design, agency; advertising production; intelligent control system integration; and sales of daily necessities.