The thickness of steel fire door leaf is divided into three standards, namely, Party A, Party B and Party C, with excellent sound insulation and heat insulation performance; The steel fireproof door can be provided with window, shutter, ventilation shutter, etc. as required.

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.