Hebei Shengqiang Door Industry Co., Ltd. is located in the Renqiu High-Tech Industrial Park in Hebei, renowned as the "Pearl of North China," which is a key transportation artery in the Beijing-Tianjin-Hebei region. It is an integrated entity that produces, sells, and installs various fire-resistant roller shutters, fire doors, security doors, and industrial doors. The company has training institutions for cultivation, production, installation, and sales year-round, making it a service-oriented company with strong cohesion and combativeness. Equipped with top-notch facilities, the company boasts multiple production lines for fire doors, security doors, and roller shutter processing equipment. Quality is our top priority.

Fire-resistant windows refer to windows, including their frames, that meet the requirements for fire resistance stability and integrity within a certain time frame. They are necessary when natural lighting and ventilation are required in the outer walls of two buildings where the fire separation distance is insufficient, or in spaces separated by fire walls.

Fire-resistant window categories:
Fixed Fire Window: A fire-resistant window without any operable sash.

Operable fire-resistant windows: Fire-resistant windows with operable sashes and equipped with sash opening/closing control devices.

Insulating Fire Windows (Type A): Fire-resistant windows that meet both the integrity and insulating requirements within the specified time.

Non-insulating fire-resistant windows (Class C): Fire-resistant windows that meet the requirements for fire resistance integrity within the specified time. Divided by fire resistance limit and insulating performance:
Fire-resistant window selection:

Fire-resistant windows are made of steel, available in two grades: Class A (fire resistance of 1.20h) and Class B (fire resistance of 0.90h).

Fire-resistant windows are primarily used in fire walls of high-rise buildings, requiring the use of Class A fire-resistant windows that can close automatically.

When the horizontal distance between windows and doors near both sides of the fire-resistant wall is less than 2 meters, Class B fire-resistant windows should be used.

In addition to residential buildings, kitchens in other structures should be equipped with Class B fire-resistant windows.

One and two-grade fire-resistant building vestibules should use Class B fire-resistant windows when openings are made in the partition walls.

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