标准查询 标准查询符合DIN 13-1的ISO米制螺纹的螺纹尾部和螺纹切槽
Thread run-outs and thread undercuts - Part 1: For ISO metric threads in accordance with DIN 13-1
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标准查询Thread run-outs and thread undercuts - Part 1: For ISO metric threads in accordance with DIN 13-1
