General project: Research and development of new material technology; Sales of office supplies; Wholesale of daily necessities; Sales of daily necessities; Sales of metal tools; Manufacturing of hardware products; Retail of hardware products; Wholesale of hardware products; Retail of arts and crafts and collectibles (excluding ivory and its products); Wholesale of cosmetics; Retail of cosmetics; Sales of sanitary ware; Wholesale of clothing and apparel; Wholesale of shoes and hats; Retail of shoes and hats; Clothing and apparel retail; Sales of special labor protection equipment; Sales of building materials; Sales of metal products; Sales of packaging materials and products; Sales of needle textiles and raw materials; Manufacturing of metal processing machinery; Manufacturing of machine tool functional components and accessories; Sales of high-speed precision heavy-duty bearings; Manufacturing of bearings, gears, and transmission components; Sales of machine tool functional components and accessories; Sales of metal cutting machine tools; Sales of CNC machine tools; Sales of metal forming machine tools; Mechanical equipment research and development; Bearing sales; Metal cutting processing services; Manufacturing of metal tools; Sales of security equipment; Sales of household appliances; Sales of mechanical equipment; Sales of instruments and meters; Electronic product sales; Installation services for ordinary mechanical equipment; General equipment repair; Repair of daily products; Sales of household audiovisual equipment; Repair of daily electrical appliances; Specialized equipment repair; Sales of mechanical and electrical equipment; Sales of electronic specialized equipment; Manufacturing of metal materials; Sales of new metal functional materials; Sales of non-ferrous metal alloys; Sales of metal materials; Sales of building decoration materials; Tool manufacturing; Tool sales; Sales of power electronic components. (Except for projects that require approval according to law, business activities can be carried