Aircraft engine derived mechanical and electrical products include: the design, integration, installation, commissioning and maintenance of vortex axis/turboprop/turbofan engine tester, tester compressor/combustion/turbine engine components, into the exhaust system, semi physical simulation test device, oil mist lubricating oil system protection device, test bench of air supply system and so on. Engine compressor blade dynamic stress measurement, sealing ring seal test and other testing and testing technical services.