High and low voltage electrical appliances and components, electromechanical equipment and complete sets, instruments and meters (excluding measuring instruments), hardware tools, general machinery, lighting, cables, auto parts, motorcycle parts manufacturing and processing (licensed production must be produced with valid certificates); sales of decorative materials, metal materials, chemical raw materials (except hazardous chemicals); import and export of goods, technology import and export (except for items prohibited by laws and administrative regulations, projects restricted by laws and administrative regulations can only be operated after obtaining a license).