No.148 Yubei District Popularity Ranking Chongqing No.4 Testing Instruments No.4 Dong Nan Ya Cross-border E-commerce No.4 Ultrasound No.6 City Gas No.8 Liang Instruments No.8 Metrology Management No.9 Gas No.15 Measuring No.18 Testing Equipment No.20 Machinery Engineering No.24 Export No.29 Yi Qi / Instruments 理事单位 常务理事单位 省级专精特新中小企业 省级高新技术企业 市级高新技术企业 省软件企业 标准起草单位 国家知识产权优势企业 高新技术企业 副理事长单位 理事长单位 专精特新小巨人企业