In many fire doors, fire doors also have unusual advantages. The steel fireproof door leaf can be divided into three specifications according to its thickness. The higher the specification, the better the sound insulation and noise reduction of the fireproof door, as well as the actual effect of thermal insulation.

Portes coupe-feu ZHTdoors, 31 ans d’expérience dans la production de portes coupe-feu et de fenêtres. Les principales portes coupe-feu UL, portes coupe-feu EN, portes coupe-feu BS EN, etc.