Home / Standards / GB/T 272-1993 GB/T 272-1993 Abolished Rolling bearing--Identification code 滚动轴承 代号方法 Standard Type GBT ICS 21.100.20 CCS J11 Status 废止 Issue Date 1993-07-28 Implementation 1994-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A