Home / Standards / GB/T 31894-2015 GB/T 31894-2015 Active Water supply equipment of low voice additive pipe pressure 静音管网叠压给水设备 Standard Type GBT ICS 91.140.01 CCS P42 Status 现行 Issue Date 2015-09-11 Implementation 2016-08-01 Responsible Dept 住房城乡建设部 Drafting Unit N/A