Home / Standards / GB/T 38885-2020 GB/T 38885-2020 Active General specification for ultra-high cleanliness of high carbon chromium bearing steel 超高洁净高碳铬轴承钢通用技术条件 Standard Type GBT ICS 77.140.10 CCS H40 Status 现行 Issue Date 2020-06-02 Implementation 2021-01-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A