Sales: Materials of construction (excluding hazardous chemicals), decorative materials (excluding dangerous chemicals) and metal materials, chemical products (excluding chemical), mechanical and electrical products, hardware, tools, ceramic products, furniture, daily provisions; Business information consultation; Import and export of goods (except items prohibited by laws and regulations; Projects restricted by laws and regulations may be operated only after obtaining a permit. (Projects that are subject to approval according to law may be carried out only after approval by relevant departments)