请教:攻M4、M5、M6、M8、M10、M12、M14、M16、M18、M20、M22、M24普通螺纹的丝应钻多大的底孔?谢谢! 标签:机床刀具、夹具螺纹刀具 浏览数:73369 举报 与我联
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m12螺纹底孔|m12螺纹接头特价抢购|m12螺纹
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