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 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 a year-round training institution for cultivation, manufacturing, installation, and sales, making it a service-oriented company with strong cohesion and combat power. Equipped with top-notch 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 those 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.

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

Operable fire windows: Fire-resistant windows featuring operable sash 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 a specified time.

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

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

Fire-resistant windows are primarily used in the fire-resistant walls of high-rise buildings, requiring the use of甲级 self-closing fire-resistant windows.

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.

When windows are installed in the partition walls of corridors in buildings with first and second fire resistance ratings, Class B fire-resistant windows should be used.

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