Home / Standards / GB/T 304.9-2008 GB/T 304.9-2008 Active Spherical plain bearings - General technical regulations 关节轴承 通用技术规则 Standard Type GBT ICS 21.100.20 CCS J11 Status 现行 Issue Date 2008-02-28 Implementation 2008-08-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A