The steel fireproof door is a door frame, door leaf frame and door leaf panel made of steel materials. The door leaf is filled with fire and heat insulation materials that are harmless to human body. The steel fireproof door structure can ensure that it is not easily deformed by impact and damaged by external force, and can be used normally for a long time without replacement.

ZHTdoors yong’inga qarshi eshiklar, yong’in eshiklari va derazalarida 31 yillik ishlab chiqarish tajribasi. Asosiy UL yong’in eshiklari, EN yong’in eshiklari, BS EN yong’in eshiklari va boshqalar.