Metal cutting processing services; Non-ferrous metal rolling processing; Metal material manufacturing; Non-ferrous metal alloy manufacturing; Common non-ferrous metal smelting; Precious metal smelting; Marine environment monitoring and detection equipment manufacturing; Railway locomotive vehicle parts manufacturing; High-speed rail equipment and parts manufacturing; Marine supporting equipment manufacturing; Marine energy system and equipment manufacturing; Bicycle manufacturing; Industrial automatic control system device manufacturing; Vacuum coating processing; Laser marking processing; Metal product repair; General equipment repair; New material technology research and development; Engineering and technological research and experimental development; Marine engineering equipment research and development; Technical services, technical development, technical consultation, technical exchange, technology transfer, and technology promotion; Industrial design services; Professional design services; Marine engineering key supporting system development. Licensed items: Civil aircraft parts design and production; Civil aircraft (engine, propeller) production; Aerospace equipment manufacturing; Civil nuclear material production; Civil aircraft repair; Ship repair; Special equipment inspection and testing; Civil nuclear safety equipment design; Special equipment design.