Beijing Chaoyang District No.10 Sewage Treatment Technology No.13 Wu Ran Fang Zhi Engineering No.15 Generators No.23 Shui Huan Jing Zhi Management No.85 Sewage Treatment No.89 Water Treatment Engineering No.90 Shui Chu Li Wei Hu No.98 Water Treatment Technology Environment Technology Water Treatment Drainage Environmental Technology 国家高新技术企业 高新技术企业 瞪羚企业 中关村高新技术企业 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