普通螺纹的特征代号是（），非螺纹密封的管螺纹特征代号是（），梯形螺纹的特征代号是（）。_精华吧

普通螺纹的特征代号是（），非螺纹密封的管螺纹特征代号是（），梯形螺纹的特征代号是（）。

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普通螺纹的特征代号是（），非螺纹密封的管螺纹特征代号是（），梯形螺纹的特征代号是（）。

A.“G”

B.“R”

C.“Tr”

D.“M”

正确答案：“G”；“Tr”；“M”

Tag：工程图学螺纹代号时间：2024-01-10 15:20:50

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