Home / Standards / GB/T 27670-2011 GB/T 27670-2011 Active Clad aluminium alloy welded tubes for heat exchangers of vehicles 车辆热交换器用复合铝合金焊管 Standard Type GBT ICS 77.150.10 CCS H60 Status 现行 Issue Date 2011-12-30 Implementation 2012-10-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A