No.368 Chaoyang District Popularity Ranking Beijing No.2 Zai Sheng Shui Li Yong No.2 Gong Ye Fei Water Treatment No.3 Zhong Shui Hui Yong No.5 Reclaimed Water No.5 Fei Water Treatment No.7 Environment Perception No.7 Hai Shui Dan Chemical No.8 Zi Lai Shui Gong Ying No.8 City Water Supply No.9 Huan Jing Ke Xue No.9 Re Dian Xiang Mu No.9 Water Supply 专精特新小巨人企业 国家优质工程奖 企业技术中心 中关村高新技术企业 高新技术企业 省级高新技术企业