Changsha Changsha County Hunan No.21 Construction Engineering Quality Detection No.23 Gong Cheng Jian Testing No.24 Engineering Quality Detection No.32 Quality Detection No.36 Engineering Detection No.38 Environment Detection No.41 Jian Ce Ji Gou No.60 Metrology Management No.79 Testing Technology No.90 Inspection Measuring Testing 市级高新技术企业 国家高新技术企业 高新技术企业 省级高新技术企业 科技型中小企业 省科技型中小企业 CMA认证 计量认证