Chongqing Yubei District No.30 Water Treatment Engineering No.30 Shui Chu Li Wei Hu No.32 Water Treatment Technology No.39 Environmental Protection Products No.42 Drainage No.48 Water Mirror No.52 Water No.69 Energy Saving and Environmental Protection Electromechanical Systems Environmental Engineering Production Equipment Electromechanical 高新技术企业 科技型中小企业 省级高新技术企业 市级高新技术企业 省软件企业