F-300 A-0
Galvanized steel casettes of 3 mm thickness.
All 4 edges are bent for maximum strength.
A-0 without bottom layer of insulation, 33 mm thick.
F-300 A-60
Galvanized steel casettes of 3 mm thickness.
All 4 edges are bent for maximum strength.
A 60 class, 63 mm thick.