2952| 8
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求分享圓錐檢驗的自制檢具是什么樣子的 |
點評
有需要可以幫你出圖,說個錐度就行,塞規/套規給你出一套。
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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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