4490| 14
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電批平衡臂相關 |
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點評
誰給你說的?
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點評
襯套也分不同類型, 在同等受力面積情況下銅基或者鋼基襯套承載比滾珠襯套高得多
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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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