6530| 20
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大神們看看這種薄壁鋼管是怎么加工的 |
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點評
冷拔管。鋁的確實沒這么厚的,鋼管確實有這么點厚的。
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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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