Hebei Shengqiang Door Industry Co., Ltd. is located in the Renqiu High-Tech Industrial Park in Hebei, known as the "Pearl of North China," situated 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 fire-proof roller shutters, fire doors, anti-theft doors, and industrial doors. The company has established training institutions for cultivation, production, installation, and sales year-round, making it a service-oriented company with strong cohesion and combativeness. Equipped with top-notch facilities, the company operates multiple production lines for fire doors, anti-theft doors, and roller shutter processing equipment. Quality is a top priority for the company.

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 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 classifications:
Fixed fire window: A fire window without operable sash.

Operable fire-resistant 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 meet the requirements for fire resistance integrity within a specified time. Divided by fire resistance limits and insulating performance:
Fire-resistant window selection:

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

Fire-resistant windows are primarily used in fire walls of high-rise buildings, requiring 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 all other structures should be equipped with Class B fire-resistant windows.

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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