16788| 49
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螺紋加工成這樣的原因是什么? |
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點(diǎn)評(píng)
不是,,是加工質(zhì)量不好
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點(diǎn)評(píng)
乳化液冷卻
評(píng)分
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點(diǎn)評(píng)
底孔和攻絲在一臺(tái)床子上,,一次裝夾完成,,不會(huì)有問(wèn)題
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點(diǎn)評(píng)
有中心孔,也是螺旋絲錐
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