8793| 18
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箱體類的能通過折彎來實現嗎? 就是盡量減少焊縫,有密封要求的 |
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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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