Home / Standards / GB/T 40011-2021 GB/T 40011-2021 Active Pilot safety valve for cryogenic fluid service 低温先导式安全阀 Standard Type GBT ICS 13.240 CCS J16 Status 现行 Issue Date 2021-04-30 Implementation 2021-11-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A