Beijing Fengtai District No.20 Shui Tu Bao Chi No.22 Environmental Protection Consulting No.22 Gong Ye Fei Water Treatment No.30 Huan Jing Wu Ran Zhi Management No.34 Wu Mud Processing No.42 Huan Jing Ying Xiang Ping Jia No.42 Environment Consulting No.76 Fei Water Treatment No.77 Wu Ran Zhi Management No.88 Wu Ran Control Huan Bao Gong Cheng Zhuan Ye Cheng Bag Qing Jie Technology 高新技术企业 省级高新技术企业 市级高新技术企业 环保工程专业承包