Hebei Shengqiang Door Industry Co., Ltd. is located in the Renqiu High-Tech Industrial Park in Hebei, which is renowned as the "Pearl of North China." It lies along the key transportation artery of Beijing, Tianjin, and Hebei. The company is a comprehensive entity that integrates the production, sales, and installation of various fireproof roller shutters, fire doors, security doors, and industrial doors. It has a training institution for cultivation, production, installation, and sales year-round, making it a service-oriented company with strong cohesion and combat power. The company boasts state-of-the-art equipment, including multiple production lines for fire doors, security doors, and roller shutter processing. 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 frame. They should be used when natural light and ventilation are needed in the exterior walls of two buildings with insufficient fire separation distance, or between spaces separated by fire walls.

Fire-resistant window classifications:
Fixed fire window: A fire window without an operable sash.

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

Insulating Fire Windows (Type A): Fire-resistant windows that meet both fire integrity and insulating requirements within a specified time frame.

Non-insulating fire-resistant windows (Class C): Fire-resistant windows that meet the requirements of fire resistance integrity within the specified time. Divided by fire resistance limits and insulating performance:
Fire-resistant window selection:

Fire-resistant windows are made of steel and are available in two types: 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, and甲级 fire-resistant windows that can close automatically are required.

When the horizontal distance between doors and windows near both sides of the fireproof wall is less than 2 meters, Class B fireproof 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-grade fire-resistant building vestibule partition walls should use Class B fire-resistant windows when openings are made for windows.

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