3587| 9
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U型鋼卷圓,圓度難控制怎么辦? |
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點評
大俠考慮過澆注成形沒有?
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點評
該項目已死,還拉了一幫人下水,不提了,說多了都是淚
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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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