General Projects: Manufacturing of special equipment for oil drilling, Sales of special equipment for oil drilling, Oil and gas technical services, Engineering and technical services( Planning Management、 Survey、 design、 Except supervision), Petroleum products manufacturing( No hazardous chemicals), Petroleum product sales( No hazardous chemicals), Deep-sea oil drilling equipment sales, Deep-sea oil drilling equipment manufacturing,Chemical product sales( Does not contain permitted chemical products), Synthetic material manufacturing( No hazardous chemicals), oil refining、 Manufacturing of special equipment for chemical production, Special equipment repair, Special equipment manufacturing( Excluding licensed professional equipment manufacturing), Machinery and equipment sales, Mechanical equipment research and development, Water environment pollution prevention and control services, Soil environmental pollution prevention and control services, Manufacturing of special equipment for environmental protection, Sales of special equipment for environmental protection, Sludge treatment equipment manufacturing, Metal tool manufacturing, Metal tool sales, General equipment manufacturing( Excluding special equipment manufacturing), Non-metallic waste and scrap processing, Rubber product manufacturing, Rubber product sales, Manufacturing of special equipment for rubber processing, Sales of special equipment for rubber processing,Metal material manufacturing, Metal processing machinery manufacturing, Metal material sales, Metal product sales, Metal cutting services, Metal scrap and chip processing, Research and development of construction waste recycling technology, Resource recycling technology research and development, Resource recycling service technical consultation, Solid waste management, Information technology consulting services, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion。( In addition to licensing business, Able to independently operate projects that are not prohibited or restricted by laws and regulations)