7720| 20
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這零件小孔是怎么做的,? |
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點評
模壓件,,鋁的
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點評
電子束焊,我干過類似的活
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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