Chongqing Yubei District No.8 Environment Detection No.13 Environmental Monitoring No.19 Vocational Healthy No.22 Environment Technology No.35 Inspection No.37 Chan Xue Yan No.37 Safety Technology No.39 Metrology Management No.57 Consulting Appraisal No.60 Research Institute No.60 Measuring Water Quality Testing 科技型中小企业 市级专精特新中小企业 市科技型中小企业 高新技术企业 省级高新技术企业 市级创新型中小企业 CMA认证 计量认证