6373| 12
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這個件是怎么出來的啊,紋路都是橫紋,不是切削加工的,是注塑么? |
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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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