GB/T 34891-2017滚动轴承高碳铬轴承钢零件热处理技术条件国家标准
英文:Rolling bearings—Parts made from high-carbon chromium bearing steels—Specifications for heat treatment GB/T 34891-201...
英文:Rolling bearings—Parts made from high-carbon chromium bearing steels—Specifications for heat treatment GB/T 34891-201...