Compared with fire doors made of other materials, steel fire doors have their own unique advantages. The surface treatment of steel fireproof door is electrostatic spraying, and the pulley, rail and other easily worn accessories are high-quality hardware, so as to ensure the service life of the product.

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.