Your search for "(corrugated) cardboard" revealed the following:

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Ultra-thin aluminium sheet (0.2 mm thick) 10 cm wide and 50 cm long: Greenstuff World material GSWD19

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Aluminium corrugated sheet 190 x 14 mm 10pcs: Campbell unpainted kit HO(1:87) 804

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[Model] Planoita Wave Board Note: Kobaru Equivalent: Sakatsuu Material N (1:150) 3745

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Tin corrugated sheet "Shin" : Baioudou N (1:150) unpainted kit AC-043-15U