70SD Fireproof Steel Windows

trybawindows 70SD Fireproof Steel Doors and Windows feature high-performance PDA thermally broken steel profiles with a 70mm frame thickness and variable wall thickness (1.5mm-3mm) for enhanced durability. The system includes multi-cavity designs (55mm/40mm/25mm) and GRPU fireproof cores, achieving EI30 to EI120 fire-protection ratings. Equipped with fireproof locks, door closers, and hinges, these units are finished with a durable fluorocarbon coating (applied at 80-120°C) for corrosion resistance. Ideal for commercial and industrial applications, trybawindows 70SD combines structural integrity with certified fire safety.