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 mmISO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
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