Including the sales of mechanical and electrical products, hardware and electrical appliances, medical devices, sports equipment, motorcycles and their spare parts, electric vehicles and their spare parts, auto parts, garments, handcrafted products, building materials, and building decoration materials (excluding paints and coatings); external investment using self-owned funds; engaging in the import and export business of various commodities and technologies on its own behalf and as an agent, except for the commodities and technologies that are restricted by the state to be operated by specific enterprises or prohibited from import and export.