Home / Standards / GB/T 12236-2008 GB/T 12236-2008 Abolished Steel swing check valve for petroleum, petrochemical and allied industries 石油、化工及相关工业用的钢制旋启式止回阀 Standard Type GBT ICS 23.060.50 CCS J16 Status 废止 Issue Date 2008-02-02 Implementation 2008-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A