Licensed Projects: Civil aircraft maintenance, Civil aviation maintenance personnel training, Design and production of civil aircraft parts, Bonded warehouse operations, Customs-supervised cargo warehousing services( No hazardous chemicals、 Dangerous goods)。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business projects are subject to the approval documents or licenses of relevant departments.) General Projects: Mechanical parts、 Parts processing, General parts manufacturing, Mechanical and electrical equipment manufacturing, General equipment repair, Special equipment repair, Electrical equipment repair, Information technology consulting services, Motor vehicle repair and maintenance, Civil aviation material sales, Technical Services、 Technology Development、 Technical Consulting、 Technical Exchange、 Technology Transfer、 Technology Promotion, Engineering and technical services( Planning Management、 Survey、 design、 Except supervision), Engineering and technical research and experimental development, Mechanical parts、 Parts Sales, Industrial automatic control system device manufacturing, Special equipment manufacturing( Excluding licensed professional equipment manufacturing), Information system integration services, Software Development, Software Sales, Data processing services, Non-residential real estate rentals, Technology import and export, Import and export of goods。( In addition to licensing business, Able to independently operate projects that are not prohibited or restricted by laws and regulations)