3495| 17
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求方法:紅色膠圈上涂抹一層潤滑油 |
點評
其他地方不能沾油
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點評
滾涂法沒有效率
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點評
要成批量的做
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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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