Home / Standards / GB/T 34891-2017 GB/T 34891-2017 Active Rolling bearings—Parts made from high-carbon chromium bearing steels—Specifications for heat treatment 滚动轴承 高碳铬轴承钢零件 热处理技术条件 Standard Type GBT ICS 21.100.20 CCS J11 Status 现行 Issue Date 2017-11-01 Implementation 2018-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A