Home / Standards / GB/T 13147-2009 GB/T 13147-2009 Active Specification for welding of copper and copper alloy clad steel plates 铜及铜合金复合钢板焊接技术要求 Standard Type GBT ICS 47.020.01 CCS U05 Status 现行 Issue Date 2009-03-23 Implementation 2009-11-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委