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大家好!如圖所示,是機械彈簧式砂帶張緊機構,紅圈6是什么東東?起什么作用?謝謝! |
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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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