7841| 40
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這樣設(shè)計的漲緊鏈輪是否合理,? |
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點評
估計買的成套的鏈輪,,帶軸承的,,惰輪那種
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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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