Home / Standards / GB/T 3670-1995 GB/T 3670-1995 Abolished Coated electrodes for copper and copper alloys 铜及铜合金焊条 Standard Type GBT ICS 25.160.20 CCS J33 Status 废止 Issue Date 1995-07-12 Implementation 1996-05-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委