Licensed Projects: Special equipment design, Special equipment manufacturing, Installation, modification and repair of special equipment( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business items are subject to the approval results.) General Projects: Special equipment sales, Mechanical equipment research and development, Machinery and equipment sales, General equipment manufacturing( Excluding special equipment manufacturing), Technology import and export, Import and export of goods, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)