Home / Standards / GB/T 30563-2014 GB/T 30563-2014 Active Qualification test of welders―Fusion welding for copper and copper alloys 铜及铜合金熔化焊焊工技能评定 Standard Type GBT ICS 25.160.10 CCS J33 Status 现行 Issue Date 2014-05-06 Implementation 2014-12-01 Responsible Dept 国家标准委 Drafting Unit N/A