“Manufacturing of special equipment; design of special equipment; installation, modification, and repair of special equipment; construction engineering construction; road freight transport (excluding dangerous goods); installation, maintenance, and testing of power transmission, distribution, and reception power facilities; electrical installation services. General items: manufacturing of specialized equipment (excluding licensed specialized equipment manufacturing); maintenance of electronic and mechanical equipment (excluding special equipment); manufacturing of general equipment (excluding special equipment manufacturing); repair of general equipment; repair of specialized equipment; manufacturing of material handling equipment; manufacturing of metal structures; manufacturing of electrical equipment supplies; manufacturing of gears, gear reducers, and gearboxes; manufacturing of bearings, gears, and transmission components; manufacturing of mining machinery; manufacturing of environmental protection special equipment; manufacturing of mechanical and electrical equipment; manufacturing of power distribution switchgear equipment; manufacturing of general parts; processing of mechanical parts and components; sales of mechanical equipment; sales of mechanical and electrical equipment; sales of mechanical parts and components; sales of construction steel bars; sales of metal materials; sales of metal structures; retail of hardware products; wholesale of hardware products; operation of wires and cables; general cargo warehousing services (excluding projects requiring permits such as hazardous chemicals); import and export of goods; import and export of technologies; road freight transport of general cargo vehicles with a total mass of 4.5 tons or less (excluding online freight and dangerous goods); manufacturing of construction engineering machinery; sales of environmental protection special equipment; sales of mining machinery; sales of construction engineering machinery; sales of metal products; general mechanical equipment installation services; sales of special equipment; research and development of mechanical equipment; manufacturing of metal processing machinery; sales of hydraulic power machinery and components; sales of material handling equipment; manufacturing of power facility equipment; manufacturing of electrical machinery specialized equipment; sales of gears, gear reducers, and gearboxes; sales of bearings, gears, and transmission components; manufacturing of motors; manufacturing of metallurgical specialized equipment; sales of metallurgical specialized equipment; manufacturing of machine tool functional parts and accessories; sales of machine tool functional parts and accessories; research and development of metal products; professional design services; repair of metal products; repair of electrical equipment; steel rolling processing; manufacturing of metal wire ropes and products; manufacturing of rubber products; sales of rubber products; sales of metal wire ropes and products; sales of instruments and meters; wholesale of electronic components; sales of intelligent material handling equipment; sales of intelligent port loading and unloading equipment; sales of electronic components and electromechanical component equipment; sales of electronic specialized equipment; sales of electrical equipment supplies; sales of communication equipment; sales of metal chains and other metal products; manufacturing of metal chains and other metal products; sales of electronic products; sales of daily necessities; sales of power facility equipment; sales of intelligent power transmission and distribution and control equipment; sales of power distribution switchgear equipment; sales of power transmission, transformation, and distribution monitoring and control equipment; sales of industrial automatic control system devices; sales of power electronic components; sales of electrical equipment; retail of electronic components; sales of pneumatic and electric tools; sales of household appliances; retail of household appliances; sales of intelligent instruments and meters; sales of electrical instruments and meters; repair of instruments and meters; software development; technical services, technical development, technical consultation, technical exchange, technology transfer, and technology promotion.”,