Home / Standards / GB/T 19447-2013 GB/T 19447-2013 Active Copper and copper-alloys seamless tubes with integral fins for heat exchanger 热交换器用铜及铜合金无缝翅片管 Standard Type GBT ICS 77.150.30 CCS H62 Status 现行 Issue Date 2013-08-01 Implementation 2014-08-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A