The fireproof materials filled in the steel fireproof door leaf are environment-friendly and pollution-free. The surface treatment process of the door leaf is powder spraying or PVC coating, which are mature environment-friendly processes.

https://ztfiredoor.com/24706.html

fire stop door,fire alarm doors,fire shute door,fire emergency doors,fire door laminated,fire insulation door,fire door stopper,fire stop door,marine fire door,fire shute door,door fire resist,fire door laminated,fire brigade doors,fire plated doors,fire stop door,steel door fire,fire shute door,fire door laminated