

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 serves as a key transportation route in the Beijing-Tianjin-Hebei region. It is an integrated entity that produces, sells, and installs various fire-resistant roller shutters, fire doors, security doors, and industrial doors. The company has a year-round training institution for cultivation, production, installation, and sales, making it a service-oriented company with strong cohesion and combativeness. Equipped with advanced 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 time period. When there is a lack of 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 an opening sash.
Operable fire-resistant windows: Fire-resistant windows with operable sashes and equipped with sash opening and closing control devices.
Insulation Fireproof Windows (Type A): Fireproof windows that can simultaneously meet the requirements for fire resistance integrity and insulation within a specified time.
Non-insulating fire-resistant windows (Class C): Fire-resistant windows that can meet the integrity requirements of fire resistance within a specified time. Divided by the fire resistance limit and insulating performance:
Fireproof 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 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 be equipped with Class B fire-resistant windows.
One and two-level fire-resistant buildings should use Class B fire-resistant windows when opening windows in the lobby partition walls.


















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