

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 a key transportation route in the Beijing-Tianjin-Hebei region. It is a comprehensive entity company that integrates the production, sales, and installation of various fire curtains, 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 has multiple production lines for fire doors, security doors, and roller shutter door processing equipment. Quality is a top priority for the company.





Fire-resistant windows refer to windows, including their frames, that can meet the requirements for fire resistance stability and integrity within a certain time frame. They are necessary when there is insufficient fire separation between the exterior walls of two buildings, or between spaces separated by fire partitions, where natural lighting and ventilation are needed.
Fireproof Window Categories:
Fixed Fire Window: A fire window without operable sashes.
Operable fire window: A fire-resistant window with an operable sash 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 the specified time.
Non-insulating fire-resistant windows (Class C): Fire-resistant windows that meet the integrity requirements of fire resistance within a specified time. Divided by the fire resistance limit and insulating 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 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 all other structures should be equipped with Class B fire-resistant windows.
One and two-level fire-resistant buildings should use Class B fire-resistant windows when windows are installed in the lobby partition walls.


















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