- 02
- Mar
fire door and door frame,fire shutter doors,fire safety door
Class A fireproof door can only reach 1.5h fire resistance time limit, and only the fireproof door made by special process can meet the 3-hour fire resistance requirement.
https://ztfiredoor.com/25574.html
防火門及門框,20 minute fire rated door,28 inch fire rated door,fire shutter doors,90分鐘防火門,防火門,ul fire door,metal door for fire exit,防火門及門框,通道入口防踢防火門板,防火門,防火安全鋼門,fire shutter doors,雙門外入口防火,防火門及門框,鋼門防火等級,fire shutter doors,防火門