7845| 10
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梯形內(nèi)孔怎樣加工內(nèi)螺紋?求大神 |
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點(diǎn)評(píng) | ||
點(diǎn)評(píng)
原來(lái)如此,建議LZ改標(biāo)題吧,改成圓錐螺紋
他說(shuō)梯形內(nèi)孔,估計(jì)就是說(shuō)的錐孔的意思吧。
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