fire resistance steel door

例句：

1. 1. The new fire-resistant steel door is more secure than the old one.
   这款新的防火钢制门比旧的更安全。
2. 2.The fire-resistant steel door is designed to prevent fire from spreading.
   这款防火钢制门设计用来阻止火势蔓延。
3. 3.The construction company installed fire-resistant steel doors in all the rooms.
   这家建筑公司在所有房间都安装了防火钢制门。