[单选题]国产50kg/m钢轨，轨腰厚是(　)。　
A.A.20mm
B.B.16.5mm　
C.C.15.5mm　
D.D.14.5mm

更多"[单选题]国产50kg/m钢轨，轨腰厚是(　)。　"的相关试题:

[填空题]50kg/m钢轨轨腰厚度为。

[单选题]国产75kg/m钢轨,轨腰厚是( )
A.20mm
B.16.5mm
C.15.5mm
D.14.5mm

[单选题]国产60kg/m钢轨，轨腰厚是（）。
A.20mm
B.16.5mm
C.15.5mm
D.14.5mm
E.略

[单选题]A-D-A-003 5 2 3
国产60kg/m钢轨，轨腰厚是( )
A.20mm
B.16.5mm
C.15.5mm
D.14.5mm

[单选题]A-D-A-003 5 2 3
国产75kg/m钢轨，轨腰厚是( )
A.20mm
B.16.5mm
C.15.5mm
D.14.5mm

[简答题]50kg/m钢轨的钢轨高度H，轨头宽度b,轨底宽度B，轨腰厚度t，螺栓孔直径各为多少？

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