5030| 15
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大家好!大家做設備,鈑金是用普通冷軋鋼嗎?45號鋼和這個比,在鈑金方面有啥區別? |
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小黑屋|手機版|Archiver|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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