GRGT started metrology services since 1964. With over 50 years of technology accumulation as well as continuous reforms and innovations,it has now grown intoanationwide,comprehensive,state-owned metrology and testing organization, specialized in providing technical metrology and calibration, product testing and certification, analysis and assessment, consulting, training, R&D of testing equipment and software etc. GRGT provides “full-industrial chain” metrology and testing solutions for key fields of national economy, Including aviation, Automotive, Transport &Rail, Communications, etc.