At present, there are two types of fire windows commonly used: one is open fire windows, also known as iron plate fire windows. It is mainly used in warehouse buildings. Like ordinary windows, it can open ventilation or daylighting when working during the day; Close after work to prevent foreign kindling from entering. Second, fixed fire windows, also known as fire-resistant glass fire windows.

It is mainly used for the parts where the two buildings are relatively close. Although the firewall with high fire resistance limit has been adopted for the outer wall, the lighting of some rooms is difficult, and the window holes must be opened on the wall, or on the fireproof partition wall, and the windows must be opened due to the needs of production process or process. At present, there are two kinds of glass fireproof windows: lead glass fireproof window and transparent fireproof glass fireproof window.

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