Wholesale and Retail: Auto Parts,[ car、 Mechanical and electrical equipment]( Excluding cars), steel, Knitted textiles, Electronics, office supplies, Building Materials, Wires and cables; Mechanical and electrical equipment rental( Excluding special equipment); Exhibition Services, Corporate image planning, Economic Information Consulting; Import and export of goods, Technology import and export( law、 Except for items prohibited by administrative regulations, law、 Projects restricted by administrative regulations may only be operated after obtaining a license); wholesale: communications equipment( Except satellite ground receiving equipment )。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments)。