Home / Standards / GB/T 13808-1992 GB/T 13808-1992 Abolished Wrought copper and copper alloys--Extruded rods and bars 铜及铜合金挤制棒 Standard Type GBT ICS 77.120.30 CCS H62 Status 废止 Issue Date 1992-11-05 Implementation 1993-06-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A