The business scope includes general business items: Sales of building materials; Sales of metal materials; Sales of metal structures; Sales of metal ores; Wood sales; Wholesale of hardware products; Sales of building decoration materials; Sales of labor protection equipment; Sales of office supplies; Wholesale of sports goods and equipment; Sales of daily necessities; Sales of second-hand daily necessities; Sales of coatings (excluding hazardous chemicals); Sales of molding materials for casting; Furniture sales; Wholesale of kitchenware, sanitary ware, and daily necessities; Sales of needle textiles and raw materials; Sales of doors and windows; Sales of lighting fixtures; Sales of communication equipment; Sales of household appliance spare parts; Sales of photovoltaic equipment and components; Installation services for ordinary mechanical equipment; Sales of refrigeration and air conditioning equipment; Sales of Class I medical devices; Sales of fans and blowers; Wholesale of fresh meat; Wholesale of fresh vegetables; Retail of edible agricultural products; Sales of lightweight building materials; Manufacturing of lightweight building materials; Sales of cement products; Sales of building waterproofing membrane products; Import and export of goods; Sales of non-metallic minerals and products; Electronic product sales; Sales of metal products; Retail of automotive spare parts; Wholesale of automotive spare parts; Sales of automotive decorative products; Sales of mechanical parts and components; Domestic trade agency; The general business items within the scope of business shall independently carry out business activities in accordance with the law, and shall be disclosed through the National Enterprise Credit Information Publicity System