According to the fire door specification, each fire door has its own identity tag, which is the electronic ID card of the fire door. The fire door label is generally pasted on the upper right corner of the door leaf. The label can know the manufacturer information, product production date, specification grade, number and other information.

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.