发表于：2026-7-1 13:02:27|本帖共 233 字 959
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公制螺纹标准与技术数据螺纹规格螺距外径C1底径钻头螺牙角度121.51210.512.560161.51614.516.560181.51816.518.560201.52018.520.560241.52422.524.560272272527.560302302830.560362363436.560482484648.560562565456.560642646264.5607627573.575.560802807880.560902908890.560 |
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