The steel fire door has a good airtightness, and the closing is in place and tight. The wear-resistant parts such as pulleys and rails are all high-quality hardware, which have been strictly tested to ensure the service life of the product.

https://ztfiredoor.com/25418.html

porte coupe-feu en métal,overhead fire door,portes coupe-feu pyropanel, volet coupe-feu avec porte de sortie,30 minute fire door external,28 portes coupe-feu,30 minute fire door external,24 inch fire rated door,double fire doors interior,30 minute fire door external,fire proof doors for sale,2 hour rated door,30 minute fire door external,portes coupe-feu décoratives,30 minute fire door external,porte coupe-feu étroite, classement au feu de la porte dans un mur de 1 heure,overhead fire door,fire rated door with vision panel,fire rated hollow metal door,overhead fire door