No.51 Beibei District Popularity Ranking Chongqing No.1 Tu Rang Xiu Fu No.2 Water Treatment Technology No.2 Huan Bao Gong Cheng Zhuan Ye Cheng Bag No.2 Shui Chu Li Wei Hu No.2 Water Treatment No.2 Water Treatment Engineering No.3 Environmental Engineering Technology No.3 Sewage Treatment No.3 Wu Ran Zhi Management No.4 Sheng Tai Bao Hu Gong Cheng Shi Engineering No.4 Huan Bao Gong Cheng Shi Engineering No.4 Design Consulting 市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 市级创新型中小企业 国家高新技术企业 专精特新企业 市政公用工程施工总承包 环保工程专业承包