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标题: DIN 7500-2 2015 [打印本页]

作者: teppei 时间: 2016-3-23 10:42:28 标题: DIN 7500-2 2015

[size=13.0156px]DIN 7500-2 2015 -Thread rolling screws for ISO metric thread - Part 2: Guideline values for hole diameters
[size=13.0156px]如题~请各位高手帮帮忙
谢谢

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