Home / Standards / GB/T 12235-2007 GB/T 12235-2007 Abolished Steel globe valves and lift check valve for petroleum, petrochemical and allied industries 石油、石化及相关工业用钢制截止阀和升降式止回阀 Standard Type GBT ICS 23.060.50 CCS J16 Status 废止 Issue Date 2007-04-18 Implementation 2007-11-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A