5055| 4
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4032鋁合金渦旋鍛造 |
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點評
蚊香類似于粉沫冶金工藝~~~~~~···.
那么直的香,類似于鍛造工藝~~~~~~···.
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Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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