

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 hub in 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 has 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 boasts multiple production lines for fire doors, security doors, and curtain doors. Quality is a top priority.





Fire doors are doors that can meet the requirements of fire resistance, integrity, and insulation for a certain period of time. They are installed as fire separation elements in fire divisions, evacuation stairwells, vertical shafts, and other locations with certain fire resistance. In addition to the functions of ordinary doors, fire doors also play a crucial role in preventing the spread of fire and smoke, allowing for the containment of fire for a certain duration to ensure the safe evacuation of personnel.
Use of fire-resistant doors: They are common closable fire-separating components in various buildings. Fire-resistant doors that meet requirements should have good heat resistance, thermal insulation, and smoke-proof performance, and should be equipped with an automatic-closing function after personnel pass through during a fire, ensuring their fire-separating function is effective.
Fire-resistant door categories include: Divided by manufacturing material: Steel-insulated fire-resistant doors; Wood-insulated fire-resistant doors; Steel-wood insulated fire-resistant doors; Fire-resistant doors with other materials. Divided by fire resistance and insulation performance:
Grade A fire doors must not be less than 1.5 hours.
Grade B fire doors must not be less than 1 hour.
Grade C fire doors must not be less than 0.5 hours.
Categorized by opening/closing characteristics: Normally Closed Fire Doors; Normally Open Fire Doors.
Choose fire doors at different levels to meet your specific needs.


















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