The business scope includes licensed items: Import and export of goods; Technology import and export (projects that need to be approved according to law can only be operated after being approved by relevant departments, and the specific business items shall be subject to the approval results) General items: Machinery and equipment sales; Sales of electrical and mechanical equipment; Sales of electrical equipment; Sales of special equipment for environmental protection; Sales of electronic measuring instruments; Sales of new energy vehicle production and testing equipment; Sales of special equipment for agricultural and sideline food processing; Wholesale of hardware products; Retail of hardware products; Sales of knitwear and textiles; Sales of building materials; Production of chemical products (excluding licensed chemical products); Sales of special chemical products (excluding hazardous chemicals); Wholesale of sports goods and equipment; Stationery retail; Sales of electronic products; Wholesale of protective equipment for medical staff; Wholesale of medical masks; Retail of medical masks; Sales of daily masks (non medical); Sales of sanitary supplies and disposable medical supplies