3830| 3
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箱體承受沖擊力,在同規格、同長度細牙螺栓承受的力大還是粗牙的大? |
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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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