DIN 13-21-ISO通用米制螺纹.第21部分:具有优选公差等级的细牙螺纹的尺寸限制；标称直径从1毫米到24.5毫米-国家数字标准馆

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ISO general purpose metric screw threads - Part 21: Limits of sizes for fine pitch threads with the prefered tolerance classes; Nominal diameter from 1 mm to 24.5 mm ISO通用米制螺纹.第21部分:具有优选公差等级的细牙螺纹的尺寸限制；标称直径从1毫米到24.5毫米

发布日期： 2005-08-01

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发布单位或类别：德国-德国标准化学会

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