Normally open fire doors are open at ordinary times and automatically close through various sensors in case of fire. The utility model solves the inconvenience caused by the closing of the fire door at ordinary times and the artificial damage caused by the frequent opening and closing of the fire door.

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.