Home / Standards / GB/T 36520.4-2019 GB/T 36520.4-2019 Active Hydraulic fluid power—Dimensions and tolerances of polyurethane seals—Part 4:Dimensions and tolerances of seals for cylinder port 液压传动 聚氨酯密封件尺寸系列 第4部分:缸口密封圈的尺寸和公差 Standard Type GBT ICS 23.100.99;83.140.50 CCS J20 Status 现行 Issue Date 2019-08-30 Implementation 2020-03-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A