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 lies along 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 curtains, fire doors, security doors, and industrial doors. The company has a training institution for cultivation, production, installation, and sales year-round, making it a service-oriented company with strong cohesion and combat power. Equipped with advanced facilities, the company boasts multiple production lines for fire doors, security doors, and roller shutter doors. 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 specified period. They should be used on the exterior walls of two buildings where the fire separation distance is insufficient, or between spaces separated by fire partitions, when natural lighting and ventilation are needed.

Fire-resistant window categories:
Fixed Fire Window: A fire-resistant window without operable sashes.

Operable fire window: A fire-resistant window with operable sash and a window sash opening/closing control device.

Insulation Fireproof Windows (Type A): Fireproof windows that meet both fire resistance integrity and insulation requirements within a specified time.

Non-insulating fire-resistant windows (Class C): Fire-resistant windows that can meet the fire resistance integrity requirements within the specified time. Divided by fire resistance limits and insulation 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, 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 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.

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

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