天溯计量：公司在全国范围内布局了22个计量实验室和5个检测基地

Group 1 - The company, Tian Su Measurement (301449.SZ), has established a network of 22 measurement laboratories and 5 testing bases across the country, creating a grid-based, digital, and shared smart laboratory service system [2] - The company has received recognition from the China National Accreditation Service for Conformity Assessment (CNAS) and the Certification and Accreditation Administration of the People's Republic of China (CMA) for its qualifications [2] - The Hainan Tianzhong Laboratory has been authorized as a legal metrology verification institution, and the subsidiary Tian Su International has been approved by the National Certification and Accreditation Administration (CNCA) [2]