Home / Standards / GB/T 15242.4-2021 GB/T 15242.4-2021 Active Dimensions series of rod and piston dynamic seals for hydraulic cylinders—Part 4:Dimensions and tolerances of bearing rings groove 液压缸活塞和活塞杆动密封装置尺寸系列 第4部分:支承环安装沟槽尺寸系列和公差 Standard Type GBT ICS 23.100.60 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