Exterior Steel Fire-Rated Doors
External Fire Doors – Features, Purpose And Installation Tips For The Beginner : Exterior Steel Fire Rated Doors
Quote from Article entitled External Fire Doors – Features, Purpose And Installation Tips For The Beginner:
The glass windows are sometimes incorporated into the design and construction of fire doors. They are usually reinforced with things like metallic meshes to ensure that they do not crack under pressure or exposure to the heat.
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