Home / Standards / GB/T 8100.3-2021 GB/T 8100.3-2021 Active Mounting surfaces of hydraulic valves—Part 3: Pressure-reducing valves, sequence valves, unloading valves, throttle valves and check valves 液压阀安装面 第3部分：减压阀、顺序阀、卸荷阀、节流阀和单向阀 Standard Type GBT ICS 23.100.50 CCS J20 Status 现行 Issue Date 2021-12-31 Implementation 2022-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A