Beijing Haidian DistrictNo.18 Pipelines EngineeringNo.20 Di Xia EngineeringNo.23 Ren Fang EngineeringNo.27 Gong Cheng Zhuang XiuNo.28 Di Ji Ji Chu Gong Cheng Shi EngineeringNo.30 Tu Jian Shi EngineeringNo.30 Tu Jian EngineeringNo.43 Tunneling EngineeringNo.45 Di Ji Yu Ji Chu EngineeringNo.52 Di Ji Ji Chu EngineeringNo.57 Di Ji Ji ChuNo.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