The safety and reliability of steel fire doors have been recognized by many users, because the materials used are solid and stable steel, non rusting, non corrosive, and good sealing. The steel fire door made of high-quality steel and refractory materials can not only meet the safety requirements, but also ensure the long-term stable use of users without damage.

ZHTdoors pòt dife, 31 ane eksperyans nan pwodiksyon nan pòt dife ak fenèt yo. Pwensipal UL dife pòt yo, EN dife pòt yo, BS EN dife pòt yo, elatriye,.Nou gen certification.ZHTdoors sipòte OEM ak konsepsyon gratis.Avantaj nou yo: bon kalite, pri faktori, bon sèvis.Byenveni pou konsilte nou.