4940| 17
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求工藝流程可轉賬 |
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點評
看很多開孔管孔的毛刺,很多東西應該是沖孔加工的
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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,浙公網安備33038202004372號 )
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