3281| 12
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請教:這個是怎么加工出來的?什么材料? |
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點評
確實看著像鋁合金硬質(zhì)陽極
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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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