Home / Standards / GB/T 9877-2008 GB/T 9877-2008 Active Hydraulic fluid power - Guide specifications for designing rotary shaft lip type seals 液压传动 旋转轴唇形密封圈设计规范 Standard Type GBT ICS 23.100.60 CCS J20 Status 现行 Issue Date 2008-07-01 Implementation 2009-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A