General Projects:Metal material manufacturing, Metal product research and development, Metal product sales, Metal product repair, Manufacturing of metal chains and other metal products, Door and window manufacturing and processing, Metal door and window construction, Door and window sales, Hardware product research and development, Hardware product manufacturing, Hardware wholesale, Hardware product retail, Manufacturing of special equipment for agricultural and sideline food processing, Sales of special equipment for agricultural and sideline food processing, Mechanical equipment research and development, Machinery and equipment sales, Mechanical parts、 Parts processing, Mechanical parts、 Parts Sales, Pneumatic power machinery and components manufacturing, General mechanical equipment installation services, electronic、 Mechanical equipment maintenance( Excluding special equipment), Metal tool sales, mold sales, Metal material sales, New energy prime mover equipment sales, Mechanical and electrical equipment sales, Manufacturing of special packaging equipment,Labor Services( Excluding labor dispatch), Engineering and technical research and experimental development, Engineering Management Services, Engineering and technical services( Planning Management、 Survey、 design、 Except supervision), Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion, Industrial Design Services, Domestic trade agent, Import and export of goods, Import and export agent, Technology import and export。( In addition to licensing business, Able to independently operate projects that are not prohibited or restricted by laws and regulations)