2927| 8
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請教錐形孔的加工,, 因本廠無小型卷板機,, 且批量小 |
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點評
我說的是直徑190展開應該是直線,,
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,,京ICP證050210號,,浙公網(wǎng)安備33038202004372號 )
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