10210| 33
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6個均布的槽怎么加工 |
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點評
...你說不能鑄造,冷加工里面還有比沖孔快的嗎?或者您改進下設(shè)備,一次沖六個孔?
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點評
六個一起沖?這個想法有意思,只是沒見過
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點評
你說是最慢的方法嗎?
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