8521| 21
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有哪位“大蝦”了解這個螺栓是怎么固定在薄板子上的? |
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點評
2mm厚的板,攻絲后有幾牙?又咋止轉?
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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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