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常識(shí)性問題:默認(rèn)情況下,允不允許打中心孔,? |
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點(diǎn)評(píng)
加工是沒必要標(biāo)的,只要你能干出來合格就行,,打不打孔不是設(shè)計(jì)的問題,,而是工藝指導(dǎo),如果質(zhì)量有問題得找工藝負(fù)責(zé),。
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