Crane, light and small lifting equipment, construction engineering machinery, concrete machinery, elevator, axle vehicle, modified special structure vehicle, aerial work equipment, special operation robot, marine engineering special equipment, oil drilling and production special equipment, special production vehicle, trailer, complete automobile and its accessories research and development, design, manufacturing (including remanufacturing), sales, repair, technical services; Sales of used construction machinery and used modified special structure vehicles; Sales and technical services of engineering machinery spare parts; Engineering machinery and equipment leasing; Loading and unloading; General freight transport. Licensed items: Road freight transport (excluding dangerous goods). General items: Digital technical services; Industrial internet data services; Enterprise management consulting; Business training (excluding education and training, vocational skills training and other training requiring licensing); Human resources services (excluding career intermediary activities and labor dispatch services); Goods import and export; Technology import and export.