aluminum
アルミニウム
abstract
backdrop
background
camouflage
chrome
construction
design
dirty
galvanised
galvanize
galvanized
gray
grey
grunge
industrial
industry
iron
material
metal
metallic
old
oxidized
panel
pattern
plate
rough
scratched
sheet
sheet metal
shiny
silver
spot
stainless
steel
strong
surface
texture
textured
tin
wallpaper
weathered
zinc