Hebei Shengqiang Door Industry Co., Ltd. is located in the Renqiu High-Tech Industrial Park in Hebei, known as the "Pearl of North China," and lies on the key transportation route of the Beijing-Tianjin-Hebei region. It is a comprehensive entity that integrates the production, sales, and installation of various fireproof roller shutters, fire doors, security doors, and industrial doors. The company has training institutions for cultivation, production, installation, and sales all year round, making it a service-oriented company with strong cohesion and combat power. Equipped with high-quality 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 can meet the requirements for fire resistance stability and integrity within a certain period of time. When there is a lack of fire separation distance between the exterior walls of two buildings, or between spaces separated by fire walls, and there is a need for lighting and ventilation, fire-resistant windows should be used.

Fire-resistant window categories:
Fixed Fire Window: A fire window without an opening sash.

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

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

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

Fire-resistant windows are made of steel, available in two grades: Grade A (fire resistance of 1.20h) and Grade 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 firewall is less than 2 meters, Class B fire-resistant windows should be used.

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

One and two-level fire-resistant building lobby partition walls should have windows installed with B-grade fire-resistant windows.

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