Home / Standards / GB/T 25857-2010 GB/T 25857-2010 Abolished Low ambient temperature air source multi-connected heat pump (air conditioning) units 低环境温度空气源多联式热泵(空调)机组 Standard Type GBT ICS 27.200 CCS J73 Status 废止 Issue Date 2011-01-10 Implementation 2011-10-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A