スチール製の防火扉は気密性に優れています。 一度閉めるとしっかり閉まり、ドアの継ぎ目から離れて冷暖房があふれ出ることもありません。

https://ztfiredoor.com/25597.html

out door furniture sets with fire tables,emergency fire door with alarm,fire steel door with window,ガラスが付いている非常口のドア,tempered glass fire rated door with exit push bar,ガラス挿入物が付いている防火鋼鉄ドア,out door furniture sets with fire tables,海洋の防火扉,fire steel door with window,out door furniture sets with fire tables,out door furniture sets with fire,tempered glass fire rated door with exit push bar,fire exit door with wired glass,fire steel door with window,fire doors with certificate,tempered glass fire rated door with exit push bar