Beijing Haidian District No.18 Pipelines Engineering No.20 Di Xia Engineering No.23 Ren Fang Engineering No.27 Gong Cheng Zhuang Xiu No.28 Di Ji Ji Chu Gong Cheng Shi Engineering No.30 Tu Jian Shi Engineering No.30 Tu Jian Engineering No.43 Tunneling Engineering No.45 Di Ji Yu Ji Chu Engineering No.52 Di Ji Ji Chu Engineering No.57 Di Ji Ji Chu No.80 Power Engineering Management 鲁班奖 国家优质工程奖 全国优秀施工企业 市级科技进步奖 科技进步奖 AAA级信用企业 ISO9000认证 市政公用工程施工总承包 隧道工程专业承包