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double swing door
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double swing door
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double swing door
弹簧门
一种水平开启的门,与普通平开门一样其转动轴位于门侧边,所不同的是弹簧门采用了弹簧铰链(合页)或门顶弹簧、地弹簧代替普通铰链,使得门扇可顺时针和逆时针双向旋转开启,且能自动关闭。
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