Guangzhou GRG Metrology and Test Technology Co., Ltd. (GRGT) is located in the Pearl River New Town. The company, as an independent legal person and a third-party metrology and test body, is on the first list of the secondary metrological organizations authorized by CNAL (China National Accreditation Board for Laboratories). GRGT has been also recognized as one of the famous high-tech companies in the capital city of Guangzhou, the model organization of technological service among all the medium-sized and small-sized enterprises in Guangdong province, the calibration and testing laboratories of innovation platform in Navigating industry and a member of metrology service excellent group by Chinese metrology association. GRGT has nearly 500 staff all through China; a lot of them are experienced experts who are members or auditors of national technical committees, or from international testing, inspection and verification company. GRGT has branches in Beijing, Dalian, Tianjin, Qingdao, Changsha, Wuhan, Suzhou, Hangzhou, Dongguan, Shenzhen, Zhuhai, Zhongshan and Huizhou to provide timely and convenient services to clients.