Home / Standards / GB/T 27672-2011 GB/T 27672-2011 Active Copper and copper alloy seamless tube for welding and cutting 焊割用铜及铜合金无缝管 Standard Type GBT ICS 77.150.30 CCS H62 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