General items: Import and export of goods; Import and export of technology; Import and export agency; Domestic trade agency; Material handling equipment manufacturing; Sales of material handling equipment; Sales of intelligent material handling equipment; Manufacturing of hydraulic power machinery and components; Sales of hydraulic power machinery and components; Sales of mechanical equipment; Sales of food (only for pre-packaged food); Sales of metal materials; Sales of non-ferrous metal alloys; Sales of high-performance non-ferrous metals and alloy materials; Sales of coal and products; Sales of petroleum products (excluding hazardous chemicals); Sales of chemical products (excluding licensed chemical products); Sales of plastic products; Sales of electronic products; Domestic container cargo transportation agency; Management consulting services; Engage in investment activities with one's own funds; Special equipment sales; General mechanical equipment installation services; Construction machinery and equipment leasing (except for projects that require approval in accordance with the law; Carry out business activities independently in accordance with the business license)