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 serves as a key transportation artery in the Beijing-Tianjin-Hebei region. It is an integrated entity that produces, sells, and installs various fire curtains, fire doors, security doors, and industrial doors. The company has a year-round training institution for cultivation, production, installation, and sales, and is a service-oriented company with strong cohesion and combativeness. Equipped with state-of-the-art facilities, the company boasts multiple production lines for fire doors, security doors, and roller shutter doors. Quality is a 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. They should be used on the exterior walls of two buildings where the fire separation distance is insufficient, or between spaces separated by fire walls, when natural light and ventilation are needed.

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

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

Insulating Fire Windows (Type A): Fire-resistant windows that meet both the integrity and insulating requirements within a 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:
Window Selection for Fireproofing

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, and甲级self-closing fire-resistant windows are required.

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 areas in other structures should use Class B fire-resistant windows.

When windows are opened in the partition walls of hallways in buildings with first or second fire resistance ratings, grade B fire-resistant windows should be used.

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