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 main transportation route of the Beijing-Tianjin-Hebei region. It is a comprehensive entity that integrates the production, sales, and installation of various fire curtains, fire doors, security doors, and industrial doors. The company maintains training institutions for cultivation, manufacturing, installation, and sales on a regular basis, making it a service-oriented company with strong cohesion and combat power. Equipped with state-of-the-art facilities, the company has 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 when natural light and ventilation are needed in the exterior walls of two buildings with insufficient fire separation, or between spaces separated by fire partitions.

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.

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

Non-insulating fire-resistant windows (Class C): Fire-resistant windows that 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 grades: Grade A (resistance to fire for 1.20 hours) and Grade B (resistance to fire for 0.90 hours).

Fire-resistant windows are mainly used in fire partitions of high-rise buildings, and甲级 self-closing fire-resistant windows are required.

If 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 other structures should use Class B fire-resistant windows.

One and two-grade fire-resistant building entrance walls should use Class B fire-resistant windows when openings are made.

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