JIS B0401-2-2016
几何产品技术规格 (GPS). 线性尺寸公差的ISO编码系统. 第2部分: 标准公差等级及孔和轴的极限偏差表
Geometrical product specifications (GPS) -- ISO code system for tolerances on linear sizes -- Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts