Home / Standards / GB/T 34173-2017 GB/T 34173-2017 Active Urban drainage and sewage treatment service 城镇排水与污水处理服务 Standard Type GBT ICS 91.140 CCS P40 Status 现行 Issue Date 2017-09-07 Implementation 2018-08-01 Responsible Dept 住房城乡建设部 Drafting Unit N/A