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橢圓形狀,不銹鋼管子怎么加工出來的,樓梯扶手上的 |
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點評
明天給你發(fā)張直段的圖片就知道了,剖面是橢圓的
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Archiver|手機版|小黑屋|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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