Hebei Shengqiang Door Industry Co., Ltd. is located in the Renqiu High-Tech Industrial Park in Hebei, renowned as the "Pearl of North China," and is a key transportation route in the Beijing-Tianjin-Hebei region. It is an integrated entity company that produces, sells, and installs various fire curtains, 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 combat power. Equipped with advanced facilities, the company has multiple production lines for fire doors, security doors, and roller shutter doors. Quality is a top priority.

Fire-resistant windows refer to windows that, along with their frames, can meet the requirements for fire resistance stability and integrity within a specified time frame. They are necessary when there is insufficient fire separation between the exterior walls of two buildings, or when light and ventilation are needed between spaces separated by fire partitions.

Fireproof Window Categories:
Fixed Fire Window: A fire window without an opening sash.

Operable fire window: A fire-resistant window with an opening sash and equipped with a sash opening and closing control device.

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

Non-insulating fire-resistant windows (Class C): Fire-resistant windows that meet the integrity requirements for fire resistance 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甲级 fire-resistant windows that can close automatically.

When the horizontal distance between doors and windows 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, kitchen windows in other structures should be of Grade B fire-resistant type.

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

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