Home / Standards / GB/T 19869.2-2012 GB/T 19869.2-2012 Active Welding procedure qualification test for aluminum and its alloys 铝及铝合金的焊接工艺评定试验 Standard Type GBT ICS 25.160.10 CCS J33 Status 现行 Issue Date 2012-11-05 Implementation 2013-03-01 Responsible Dept 国家标准委 Drafting Unit N/A