No.122 Shunyi District Popularity Ranking Beijing No.3 Hei Chou Shui Ti No.3 Sheng Tai Bao Hu No.4 Water Treatment Systems No.5 Shui Zhi Management No.5 Huan Jing Xiu Fu No.5 Mo Sheng Wu Fan Ying Devices No.5 Shui Sheng Tai Zhi Management No.12 Shui Huan Jing Zhi Management No.17 Vocational Healthy No.28 Water Treatment Engineering No.29 Shui Chu Li Wei Hu No.30 Sewage Treatment 中关村高新技术企业 自主创新示范企业 高新技术企业 国家重点新产品 理事单位 专精特新小巨人企业