9658| 32
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鈑金折彎工藝 |
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點評
下料分2快板,四邊是一塊,底板是一塊。
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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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