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55度圓錐管螺紋問題,請(qǐng)教 |
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點(diǎn)評(píng)
Rc可不是Rp哦,,而且有可能外螺紋車小了,,也有可能內(nèi)螺紋車大了。所以螺紋加工一定要用螺紋規(guī)確認(rèn),。
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