Manufacturing and sales of train axles, metallurgy, rolling steel, forging, lifting, non-standard equipment, industrial and mining parts, oil film bearings, precision forgings, structural parts, gears and automotive transmissions, special equipment: pressure vessels; electromechanical technical services; installation, commissioning, repair, and modification of mechanical equipment; import and export; export business of self-produced products and import business of mechanical equipment, parts, raw materials, and auxiliary materials required by the enterprise (excluding goods and technologies restricted by the state); sales of excavation equipment and steel wheel products; international freight forwarding agency business; production, sales, and technical services of steel ingots, castings, forgings, heat-treated parts, mold making, packaging, precision casting equipment, and precision casting materials; technical services for industrial furnaces; technical consulting services for castings, forgings, heat-treated parts, and smelting technologies; technical development services for mechanical equipment; electronic computer application and software development; contracting of overseas installation projects for self-produced equipment and domestic and international bidding projects; sales of equipment and materials required for the above overseas projects; mining excavation and conveying equipment, coking equipment, pipe manufacturing equipment, wind power generation equipment and their parts; tunnel machinery, port machinery; gearboxes; design, manufacturing, installation, and sales of electrical automation complete equipment; road cargo transportation; road ordinary cargo transportation, large object transportation; contracting of foreign engineering projects commensurate with the enterprise’s strength, scale, and performance; manufacturing of road motor vehicles, manufacturing of automotive parts and accessories, manufacturing of special equipment, leasing of mechanical equipment, manufacturing of general equipment (excluding special equipment), sales of automobiles, sales of motor vehicle charging, repair and maintenance of motor vehicles, centralized fast charging stations, installation, renovation, and repair of special equipment, sales of intelligent vehicle equipment.