The steel fire door is composed of steel frame and steel door leaf. The door leaf surface treatment process is powder spraying or PVC coating, which is a mature environmental protection process.

https://ztfiredoor.com/24683.html

emergency door exit,金屬防火門，鋼製消防通道,24 hour garage door,steel fire escape doors,emergency egress door,緊急出口門價格，emergency door exit,fire exit alarm,emergency garage,鋼製消防通道,emergency fire door,fire egress door,emergency door exit,fire escape door lock,鋼製消防通道,金屬防火門，emergency egress door,鋼製緊急出口門，雙緊急出口門，emergency egress door