UL Fireproof Door Not Opening

Normally closed fire doors are closed at ordinary times and need to be pushed open when someone walks around. The normally closed fire door does not need to be set with electric automatic control, so the cost is low; The normally closed state can isolate and protect some important equipment and facilities.

Protipožiarne dvere ZHTdoors, 31 rokov skúseností s výrobou protipožiarnych dverí a okien. Hlavné protipožiarne dvere UL, protipožiarne dvere EN, protipožiarne dvere BS EN atď., Máme certifikáciu. Dvere ZHT podporujú OEM a bezplatný dizajn. Naše výhody: dobrá kvalita, výrobná cena, dobrý servis. Vitajte a poraďte sa s nami.

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