Home / Standards / GB/T 304.2-2015 GB/T 304.2-2015 Active Spherical plain bearings—Identification code 关节轴承 代号方法 Standard Type GBT ICS 21.100.20 CCS J11 Status 现行 Issue Date 2015-12-31 Implementation 2016-04-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A