As the accredited laboratory of COMAC and the witness testing laboratories of FAA and EASA, GRG Test has possessed a comprehensive measurement and testing service capability, including environment and reliability, electro-magnetic compatibility, chemical analysis and measurement and calibration to meet the testing requirements of airborne equipment. At present, GRG Test has developed into a leading third-party laboratory for services, such as measurement and calibration of airborne equipment, environmental tests, electro-magnetic compatibility tests in China. It can provide equipment design manufacturers with full life cycle measurement, testing and product improvement technical services, help customers calmly cope with the pressure of aviation industry quality management, airworthiness management and technology so as to quickly realize product improvement and upgrading.