2071| 9
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圖示零件用什么材料較好 |
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點評
超級貴的,,30的棒料700毫米長,,大幾百塊,抗拉強度將近100mpa
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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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