oxidized metal surface, diagonal metal sheets

age alloy associated bad black block bronze brown build carbon check checkered construction corrode corrosion defect defects defense den design diagonal dig example feel flat forged frame framework garage good grill grilled hard house industries industry lair layer leaf light loft low made make man manage manlike material metal mining natural nature noise object old orange other oxid oxidized oxigen power protect protection quality red rust scratches sheet similar size spots stain staining strong surface texture tool tough true weak