樓主: 往前走
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36歲的機(jī)械人生隨談。。。。 |
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點(diǎn)評(píng)
以后只有老家伙才懂工藝、材料、熱處理。
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小黑屋|手機(jī)版|Archiver|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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