12248| 20
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圖上直徑為30mm和40mm內孔該如何加工 |
我還真沒見過這樣的圖紙
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點評
顧老師,他這圖的30和40連直徑符號都木有啊
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點評
使用成型刀
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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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