General items: Import and export agent; Sales of metal products; Sales of metal materials; Sales of machinery and equipment; Electronic product sales; Office equipment sales; Sales of building materials; Sales of thermal insulation materials; Sales of chemical products (excluding licensed chemical products); Wire and cable operation; Sales of architectural ceramic products; Sales of sanitary ceramic products; Sales of daily ceramic products; Daily necessities sales; Needle textile sales; Instrument sales (except for projects that must be approved according to law, independently carry out business activities according to law on the basis of business license)