GOST 21335-1975 Low knurled-head and cup-point screws Construction and dimensions《带滚花矮头及钻孔端螺钉 结构及尺寸》.pdf

相关资源

GOST 21336-1975 Low knurled-head and round-point screws Construction and dimensions《带滚花矮头及圆角端螺钉 结构及尺寸》.pdf

GOST 21337-1975 Low knurled-head and flat-dog point screws Construction and dimensions《带滚花矮头及圆柱端螺钉 结构及尺寸》.pdf

GOST 21332-1975 Low knurled-head screws Construction and dimensions《带滚花矮头螺钉 结构及尺寸》.pdf

GOST 21333-1975 Low knurled-head and cone-point screws Construction and dimensions《带滚花矮头及圆锥端螺钉 结构及尺寸》.pdf

GOST 21334-1975 Low knurled-head and step-point screws Construction and dimensions《带滚花矮头及台阶端螺钉 结构及尺寸》.pdf

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