- 22
- Nov
Fire Rated Door BD,Steel Sliding Door,Metal Sheet Door
The fire resistance time of Grade A steel fire door shall not be less than 1.5 hours, and the thickness of Grade A fire door is generally 50 mm. Pearlite is generally used inside, and a small amount of refractory materials such as vermiculite fire-proof board, foam door core board, etc.
fire rated door bd,steel sliding door design,steel or fiberglass door,metal sheet door,비상 도어 잠금 장치,강철 미닫이 문,
metal sheet door,금속 게이트 도어,emergency door break glass,fire resistant doors for flats,강철 미닫이 문,20 minute fire rated door,fire rated door bd,
방화문 bd,fireproof door test,fire rated door frame,강철 미닫이 문,내화성 문 기준,metal sheet door