liuxilin1215 发表于 2014-4-27 06:34:45

DIN 13-23-2005 ISO通用米制螺纹 第23部分:优选公差级的细牙螺

DIN 13-23-2005 ISO general purpose metric screw threads – Part 23: Limits of sizes for fine pitch threads with the prefered tolerance classes; Nominal diameter from 53 mm to 110 mm
ISO通用米制螺纹 第23部分:优选公差级的细牙螺纹的极限尺寸 标称直径53mm至110mm


admin 发表于 2014-4-28 18:28:05

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