Beijing Haidian District No.5 Da Qi Zhi Management No.6 Environmental Protection Facilities No.7 Da Qi Wu Ran Fang Zhi No.9 Wu Ran Fang Zhi Engineering No.9 Desulfurization and Denitrification No.10 Yan Qi Tuo Liu Tuo Xiao No.11 Wu Ran Zhi Management No.12 Shui Wu Ran Zhi Management No.14 Wu Ran Control No.21 Construction Management No.24 Re Dian Xiang Mu No.27 Re Dian 国家高新技术企业 高新技术企业 创新型企业 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