

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 is situated on the key transportation route of the Beijing-Tianjin-Hebei region. It is a comprehensive entity company integrating the production, sales, and installation of various fire-resistant 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 combativeness. 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 windows, including their frames, that can meet the requirements for fire resistance stability and integrity within a certain period of time. When there is a lack of fire separation distance 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.
Fireproof Window Categories:
Fixed fire window: A fire window without an operable sash.
Operable fire window: A fire-resistant window with operable sashes and a window sash opening/closing control device.
Insulation Fireproof Windows (Type A): Fireproof windows that can simultaneously meet the requirements for fire resistance integrity and thermal insulation within a specified time.
Non-insulating fire-resistant windows (Class C): Fire-resistant windows that can meet the fire resistance integrity requirements within a specified time. Divided by fire resistance rating and insulating performance:
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, and require the use of Class A fire-resistant windows that can close automatically.
When the horizontal distance between windows and doors 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-grade fire-resistant building vestibule partition walls should have windows with Class B fire-resistant windows when openings are made.


















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