Home / Standards / GB/T 12240-2008 GB/T 12240-2008 Active Iron plug valves 铁制旋塞阀 Standard Type GBT ICS 23.060.20 CCS J16 Status 现行 Issue Date 2008-06-25 Implementation 2009-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会