5709| 26
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12磅錘沖擊力 |
點評
精辟點是?
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點評
大螺母,m475x6,低合金鋼,螺紋的強度夠,如何估計沖擊力的范圍
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點評
和缺口沖擊試驗機類似吧
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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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