... casts, welded to the steel frame, steel quality: Q235A, 4mm thickness 12pcs steel cross member, steel quality: Q235A, 3mm thicknessInsulation ... ) ROOFSteel frame made from cold rolled, welded steel profiles, steel quality:SPHC, 3mm thickness 4pcs corner casts, ... External cladding 0.5mm thickness corrugated, galvanised and coated steel sheetInsualtion non combustible mineral wool in a thickness of ...