General Projects: Import and export of goods, Technology import and export, Metal material sales, Sales of new metal functional materials, Non-ferrous metal alloy sales, Special equipment sales, New material technology research and development, Sales of high-performance non-ferrous metals and alloy materials, Sales of metal chains and other metal products, Sales of forgings and powder metallurgy products, Metal ore sales, Metal cutting and welding equipment sales, Sales of high-quality special steel materials, Metal tool sales, Machinery and equipment sales, Mechanical equipment research and development, General mechanical equipment installation services, Metal product sales, Sales of metal wire ropes and their products, Construction machinery sales, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion, Information technology consulting services, Domestic trade agent( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)