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m30的标准螺距是多少
更新时间: 2020-11-12 00:00:00  

M30标准粗牙螺距是3.5mm,M30标准细牙螺距是3mm。螺纹中的1/4、1/2、1/8标记是指螺纹尺寸的直径,单位是英寸。行内人通常用分来称呼螺纹尺寸,一寸等于8分,1/4寸就是2分,如此类推。

关键词: m30 标准 螺距 多少

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