Metal wire and rope and its products sales; wire, cable business; metal chains and other metal products sales; new metal functional materials sales; high-performance non-ferrous metals and alloy materials sales; electronic special materials sales; refractory materials sales; non-metallic minerals and products sales; graphite and carbon products sales; high-purity elements and compounds sales; metal matrix composite materials and ceramic matrix composite materials sales; plastic products sales Metal materials sales; metal products sales; machinery and equipment sales; construction materials sales; mining machinery sales; construction machinery sales; machinery parts, parts and components sales; chemical products sales (excluding licensed chemical products); household appliances sales; furniture sales hardware products research and development; general merchandise sales; trade brokers; information technology consulting services; technical services, technology development, technology consulting Technology Exchange, Technology Transfer, Technology Promotion; Technology Import and Export; International Cargo Transportation Agency; Cargo Import and Export; Import and Export Agency. (In addition to projects subject to approval by law, with a business license to carry out business activities in accordance with the law)