The interior of the steel fireproof door leaf is filled with new environment-friendly flame retardant and thermal insulation materials. The junction between the door leaf and the door frame and the perimeter of the fireproof glass are treated with fireproof sealing, which greatly enhances the fireproof performance of the fireproof door.

steel fire door, κατασκευαστές πυρίμαχων πορτών στη Βομβάη,emergency door lock,exit door sign,κατασκευαστής πυράντοχης πόρτας,emergency door lock,steel entry door,steel fire door,μεταλλική πόρτα ασφαλείας,exit door sign,emergency door break glass,exit door width factor,emergency door lock,πόρτα εξόδου, πυράντοχη, βαφή πόρτας, πυράντοχη πόρτα, χαλύβδινη πόρτα εισόδου,steel fire door