As we know, steel fire doors are what we call iron fire doors. The door frame, door leaf frame and door leaf panel made of steel materials are used for fire doors. The door leaf is filled with non-toxic and harmless fireproof and thermal insulation materials, and equipped with fireproof hardware fittings to form a door with certain fire resistance, so its fire resistance is very good.

ZHTdoors protupožarna vrata, 31 godina iskustva u proizvodnji protupožarnih vrata i prozora. Glavna UL protupožarna vrata, EN protupožarna vrata, BS EN protupožarna vrata, itd. Imamo certifikate. ZHTdoors podržavaju OEM i besplatan dizajn. Naše prednosti: dobra kvaliteta, tvornička cijena, dobra usluga. Dobrodošli da nas konzultirate.