螺纹攻牙钻孔径对照表

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螺丝攻牙钻孔径滚造径对照表excel表格管螺纹公制美制粗细螺纹

螺丝攻牙钻孔径滚造径对照表excel表格管螺纹公制美制粗细螺纹

螺丝攻牙钻孔径滚造径对照表excel表格管螺纹公制美制粗细螺纹

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