The fire endurance of Grade C fire door shall not be less than 0.6h. There will be a layer of electrostatic spraying on the surface, and the interior is filled with non-toxic and harmless fireproof and thermal insulation materials. The filler of Grade C fireproof door is perlite and cement fireproof materials that meet the environmental protection and fire protection standards.

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.