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Lumber
Timber after it has been sawed and split into planks or other smaller components that can be used as building material.
Industry: Building materials
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Lumber
火牆
Building materials; Lumber
一堵牆,旨在抵禦火災的蔓延。通常需要之間的車庫和生活空間 火牆壁中的家園。火牆壁通常額定的時間,它們被設計為抵禦火災的蔓延。典型住宅防火牆評級是一個小時。 ...