Chongqing Jiulongpo District No.17 Tu Di Fu Ken No.22 Jian Zhu Nuan Tong No.24 Construction Supervision No.31 Engineering Surveying and Mapping No.38 Water Supply and Drainage Design No.38 Water Supply and Drainage Engineering No.42 Water Supply and Drainage No.49 Surveying and Mapping No.63 Drainage Systems No.69 Survey Design Institute No.78 Structural Engineering No.81 Safety Supervision 副会长单位 理事单位 常务理事单位 会长单位 ISO9001认证 ISO14001认证 OHSAS18001认证