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Zonle Doors has specialized in door manufacturing for 20+ years

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fire rate door test

Steel Door Fire Resistance Test | High Temperature Durability Performance

Discover how our steel doors perform under high-temperature conditions through a real fire resistance test. This video showcases the durability and surface stability of our steel door panels after heat exposure.

In this steel door fire resistance test, the door panel is exposed to high temperatures, creating a layer of black ash on the surface. After cleaning with a cloth, the surface remains unchanged without visible damage, deformation, or loss of finish.

This test demonstrates the excellent durability, stable structure, and reliable surface performance of our steel doors. Designed for residential, commercial, and industrial applications, our steel doors provide long-lasting quality and dependable performance for global customers.

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