Home / Standards / GB/T 29031-2012 GB/T 29031-2012 Active Air-source based air-conditioning(heat pump)water heater unit 空气源单元式空调(热泵)热水机组 Standard Type GBT ICS 27.200 CCS J73 Status 现行 Issue Date 2012-12-31 Implementation 2013-10-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A