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US07740931B2 Fire protection gate and correlated fire protection inset 有权
防火门和相关防火插图

Fire protection gate and correlated fire protection inset
Abstract:
At a fire protection gate with an encompassing structure and bilateral steel plate shells, between which a fire protection inset is provided, consisting of at least an insulating element in the form of a plate of mineral fibers, soluble in a physical milieu and reinforced with a binding agent, the composition of the mineral fibers of said insulating element features an alkali/earth alkali-mass relation of
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