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這個鍵槽一般是安裝什么樣的東西啊,,怎么從中間斷了,,還有螺紋 |
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點評
防止圓螺母轉(zhuǎn)動的
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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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