3519| 6
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求高手解決沖孔翻邊一次成型 |
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點(diǎn)評(píng)
哈哈,,這些年,發(fā)現(xiàn)完全沒(méi)有工藝概念的越來(lái)越多了,,無(wú)論是用拉伸切底,,或者沖切旋壓,一步都沒(méi)法處理,,都挺麻煩的,,
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