Chongqing Yubei District No.9 Fei Water Treatment No.15 Sheng Tai Bao Hu Xiu Fu No.20 Wu Ran Zhi Management No.20 Wu Ran Control No.22 Huan Jing Wu Ran Zhi Management No.31 Sewage Treatment No.38 Shui Chu Li Wei Hu No.38 Water Treatment Engineering No.41 Water Treatment No.41 Water Treatment Technology No.49 Environmental Protection Products No.63 Environmental Technology 国家高新技术企业 高新技术企业 科技型中小企业 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