steel fire door double open

Steel fire doors (national standard, American standard) double open

Main material: high-quality cold-rolled steel plate

Door frame thickness: 1.2-1.5mm

Stainless steel door leaf panel: 0.8-1.2mm

Door leaf thickness: 45-50mm

Material filling: perlite fireproof board

Fire rating: Grade A 1.5h, Grade B 1.0h, Grade C 0.5h

Product surface: electrostatic spray

Conventional size: 1500×2100mm, 1800×2100mm