Domestic trade agency; Sales of lighting fixtures; Wire and cable business; Sales of power distribution switch control equipment; Retail of hardware products; Sales of metal products; Sales of electronic products; Sales of plastic products; Sales of daily-use glass products; Office supplies sales; Sales of household goods; Sales of household appliances; Sales of daily necessities; Sales of building materials; Furniture sales; Sales of architectural ceramic products; Sales of non-metallic minerals and products; Wholesale of electronic components; Sales of arts and crafts and ceremonial supplies (except ivory and its products); Wholesale of kitchenware, sanitary ware and daily necessities; Import and export of goods or technology (except for the import and export of goods and technology prohibited by the state or involving administrative approval)