Beijing Chaoyang DistrictNo.8 Sleeves PipesNo.8 Zong He Cloths LinesNo.11 Boilers TechnologyNo.12 Renewable ResourcesNo.12 Pipelines EngineeringNo.14 Boilers EquipmentNo.16 Water Supply and Drainage DesignNo.16 Water Supply and Drainage EngineeringNo.18 Water Supply and DrainageNo.19 ConcreteNo.20 Zi Yuan Zai ShengNo.22 Decoration EngineeringAAA级信用企业鲁班奖詹天佑奖全国五一劳动奖全国建筑业先进企业国家高新技术企业ISO9001认证ISO14001认证OHSAS18001认证