Home / Standards / GB/T 2351-2021 GB/T 2351-2021 Active Fluid power systems and components—Outside diameters of tubes and inside diameters of hoses 流体传动系统及元件 硬管外径和软管内径 Standard Type GBT ICS 23.100.40 CCS J20 Status 现行 Issue Date 2021-05-21 Implementation 2021-12-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A