Licensed project: Food sales (projects that require approval according to law can only be carried out after being approved by relevant departments, and specific business projects are subject to the approval results) General project: Sales of metal products; Sales of mechanical equipment; Sales of instruments and meters; Sales of electrical equipment; Sales of mechanical and electrical equipment; Sales of CNC machine tools; Sales of metal cutting machine tools; Sales of electronic measuring instruments; Sales of metal cutting and welding equipment; Sales of power electronic components; Sales of electrical equipment; Sales of rubber products; Sales of plastic products; Sales of metal materials; Sales of non-ferrous metal alloys; Wire and cable management; Mold sales; Sales of metal tools; Sales of electrical instruments and meters; Wholesale of hardware products; Sales of drawing, calculation, and measurement instruments; Sales of paper products; Sales of daily wooden products; Sales of cork products; Scale sales; Sales of material handling equipment; Wholesale of kitchen utensils, sanitary ware, and daily necessities; Sales of valves and cocks; Sales of household appliances; Internet sales (excluding sales of goods that require licensing); Import and export of goods; Technology import and export; Import and export agency; Sales of electronic products; Clock sales; Sales of clocks and timing instruments; Luggage sales; Food sales (only pre packaged food is sold); Wholesale of aquatic products (except for projects that require approval according to law, independently carry out business activities with a business license in accordance with the law)