Manufacturing of rubber products; manufacturing of intelligent basic manufacturing equipment; manufacturing of industrial automatic control system devices; manufacturing of hardware products; manufacturing of industrial textile products; sales of rubber products; sales of intelligent basic manufacturing equipment; sales of industrial automatic control system devices; sales of industrial textile finished products; sales of wind farm related equipment; sales of tires; electric bicycles Sales; sales of assistive bicycles, scooters and spare parts; sales of bicycle spare parts; sales of material handling equipment; sales of batteries; sales of battery spare parts; sales of mining machinery; sales of intelligent material handling equipment; sales of metal materials; sales of building materials; sales of labor protection supplies; sales of synthetic fibers; sales of graphite and carbon products; engineering plastics and synthetic resin sales; sales of chemical products (excluding licensed chemical products); sales of coal and products (raw coal, bulk coal, coal gangue, coal slime, coal powder, coal-water slurry, briquettes, coke, blue charcoal, etc. shall not be contained in the no-burn zone); retail of hardware products; wholesale of motorcycles and spare parts; operation of wires and cables; research and development of Internet of Things technology; and leasing of machinery and equipment. ; General equipment repair; Special equipment repair; Internet of Things technical services; Internet of Things application services; Information system integration services; New material technology promotion services; Technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; Intelligent control system integration; Import and export of goods; Technology import and export licensing projects: wire and cable manufacturing