Home / Standards / GB/T 12949-1991 GB/T 12949-1991 Abolished Plain bearings--Bimetallic busheswith plastic overlay 滑动轴承 覆有减摩塑料层的双金属轴套 Standard Type GBT ICS 21.100.10 CCS J12 Status 废止 Issue Date 1991-06-04 Implementation 1992-03-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A