Due to its excellent corrosion resistance, appealing appearance, suitability for subsequent processing, cost reduction, and minimal environmental impact, hot-dip galvanized steel sheet is highly favored by a wide range of users. Overview of Hot-Dip Galvanized Steel Sheet Production in China During the 1950s to 1970s, China successively constructed about 15 sets of individual solvent-based hot-dip […]
Monthly Archives: August 2024
Fire Doors – Technical Standard RequirementsSpecifications for Fire Doors in This ProjectThe steel fire doors used in this project must comply with the following standard requirements: I. Material and Fire Protection RequirementsFire Resistance Rating II. Door Leaf Opening Direction III. Technical Requirements IV. Appearance QualityWelding requirements dictate that welding should be firm, with evenly distributed […]
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Steel fireproof doors are essential safety features in buildings, constructed using steel raw materials for durability and fire resistance. These doors are composed of door frames, door leaf frames, and door leaf control panels, reinforced with fireproof insulation materials for added safety. Characterized by a smooth and aesthetically pleasing surface, steel fireproof doors come in […]
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The opening angle of a fire door is a critical factor that impacts the width of evacuation routes. While fire doors and conventional evacuation doors typically open at up to 120° or even 150°, it is recommended to limit the opening angle to 90° to ensure maximum clear evacuation width. It is important to ensure […]
Guangdun Fire Protection Doors & Windows is a comprehensive enterprise specializing in design, production, installation, sales, and after-sales service of fire-rated doors and windows. Our fire protection products have been certified through National Public Security Ministry’s Type Approval and the mandatory 3C certification. We primarily manufacture steel fire-rated doors, steel and wood composite fire-rated doors, […]