Chinese Standard: GB/T 22522-2008

Three wires for screw thread measuing

全国量具量仪标准化技术委员会(SAC/TC 132)

本标准规定了螺纹测量用三针的术语和定义、型式与基本参数、要求、检验方法、标志与包装等。
本标准适用于检验螺纹中径用的，公称直径D为0.118 mm～6.212 mm的三针。

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