6204| 11
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直徑8mm內(nèi)孔6.5mm的銅管加工至6mm |
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點(diǎn)評(píng)
加工前,內(nèi)徑6.5mm,。加工后,,,內(nèi)徑無(wú)要求,,壓緊銅線即可,,,表達(dá)的不是這意思嗎,?
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