Steel fire doors can not only prevent the spread of fire, but also prevent the extinguishment of smoke. Steel fire doors can reduce the harm of smoke inhalation to human health, and establish their excellent fire performance to a large extent.

Mga pultahan sa sunog sa ZHTdoors, 31 ka tuig nga kasinatian sa produksiyon sa mga pultahan sa sunog ug Windows. Ang nag-unang UL fire doors, EN fire doors, BS EN fire doors, etc.,.We have certification.ZHTdoors support OEM and free design.Our advantages:good quality, factory price, good service.Welcome to consult us.