Research and development of new materials technology Technical services, technical development, technical consultation, technical exchange, technical transfer, and technical promotion; Software development Digital technology services Internet sales (excluding the sale of goods that require a license); Sales of textile products and raw materials; Sales of needle and textile products; Wholesale of clothing and accessories Sales of clothing accessories Retail of clothing and accessories Sales of daily necessities; Wholesale of shoes and hats Retail of shoes and hats "Bag and luggage sales; " Sales of leather products Sales of mechanical equipment; Sales of household goods (except for projects that require approval by law, business activities are carried out independently in accordance with the business license in accordance with the law).