No.505 Beijing Popularity Ranking No.25 Fengtai District No.1 Sponge No.1 Industry Operations No.1 Shui Zhi Management No.1 Huan Bao Gong Cheng Zhuan Ye Cheng Bag No.1 Shui Wu Ran Zhi Management No.1 Water Pipes No.1 Sheng Tai Huan Jing Zhi Management No.2 Hai Mian Cheng Shi No.2 Construction Electromechanical Engineering No.3 Tu Rang Xiu Fu No.3 Environmental Engineering Technology No.3 Huan Bao Gong Cheng Shi Engineering 理事单位 高新技术企业 詹天佑奖 企业技术中心 知识产权示范企业 市级知识产权示范企业 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 双百企业 专精特新小巨人企业 建筑工程施工总承包 机电工程施工总承包 环保工程专业承包