Hebei Shengqiang Door Industry Co., Ltd. is located in the Renqiu High-Tech Industrial Park in Hebei, renowned as the "Pearl of North China." It lies along the key transportation route of the Beijing-Tianjin-Hebei region and is a comprehensive entity that integrates the production, sales, and installation of various fire-rated roller shutters, fire doors, security doors, and industrial doors. The company maintains a training institution for cultivation, manufacturing, installation, and sales on a regular basis, making it a service-oriented company with strong cohesion and combativeness. Equipped with advanced facilities, the company boasts multiple production lines for fire doors, security doors, and roller shutter processing equipment. 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 certain period. When there is insufficient fire separation 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.

Fireproof Window Categories:
Fixed Fire Window: A fire-resistant window without operable sash.

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

Insulating Fireproof 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 can meet the requirements for fire resistance integrity within a specified time. Divided by the fire resistance limit and insulating performance:
Fire-resistant window selection:

Fire-resistant windows are made of steel and are available in two grades: Class A (with a fire resistance of 1.20h) and Class B (with a 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 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, kitchens in other structures should be equipped with Class B fire-resistant windows.

One and two-level fire-resistant building lobby partition walls should have windows with Class B fire-resistant windows when openings are made.

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