3197| 6
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深孔加工,怎樣能把62毫米的孔加工成115的通孔? |
點(diǎn)評(píng)
好像是這樣
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本版積分規(guī)則
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Archiver|手機(jī)版|小黑屋|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,京ICP證050210號(hào),浙公網(wǎng)安備33038202004372號(hào) )
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