Home / Standards / GB/T 3669-2001 GB/T 3669-2001 Active Aluminium and aluminium-alloy electrodes for shielded metal arc welding 铝及铝合金焊条 Standard Type GBT ICS 25.160.20 CCS J33 Status 现行 Issue Date 2001-12-17 Implementation 2002-06-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委