标 准 号：DIN 5471-1974 简体中文标题：机床.带4个键的花键轴和花键孔的剖面.内定心.尺寸 繁体中文标题：机床.带4个键的花键轴和花键孔的剖面.内定心.尺寸 English Name：Machine Tools; Spline Shafts and Spline Bore Profiles with 4 Splines, Internal Centering, Dimensions...