Home / Standards / GB/T 15530.6-2008 GB/T 15530.6-2008 Active Loose plate flange in steel with a copper pipe or a weld-neck collar in copper alloy for welding 铜管折边和铜合金对焊环松套钢法兰 Standard Type GBT ICS 23.040.60 CCS J15 Status 现行 Issue Date 2008-08-25 Implementation 2009-04-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A