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鐵基粉末冶金工件（HRB52~72）的切屑參數(shù)手冊(cè) |
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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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發(fā)表于 2009-6-10 08:47:57
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