6975| 17
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鋁合金光面問題 |
點評
正解,刀磨好后加點火油,雖然有煙,但是很光的,還不粘刀
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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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