Screw thread gauge is the most extensive and practical detector in thread machining.

螺纹量规是螺纹加工中应用最广泛、最实用的检测工具。

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Screw thread gauge is the most extensive and practical detector in thread machining.

螺纹量规是螺纹加工中应用最广泛、最实用的检测工具。

youdao