Hebei Shengqiang Door Industry Co., Ltd. is located in the Renqiu High-Tech Industrial Park in Hebei, which is 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 produces, sells, installs various fire-resistant roller shutters, fire doors, security doors, and industrial doors. The company maintains training institutions for cultivation, production, installation, and sales throughout the year, making it a service-oriented firm 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 processing equipment. Quality is our top priority.

Fire-resistant windows refer to windows, including their frames, that 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 partitions, 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 an opening sash.

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

Insulating Fire Window (Type A): Fire window that meets both fire resistance integrity and insulating requirements within 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 fire resistance limits and insulating properties:
Fire-resistant window selection:

Fire-resistant windows are made of steel, available in two types: 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, requiring the use of Class A fire-resistant windows that can close automatically.

When the horizontal distance between doors and windows adjacent to 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.

When windows are installed in the partition walls of hallways in Class 1 and 2 fire-resistant buildings, Class B fire-resistant windows should be used.

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