abstract
aged
backdrop
background
blank
bolts
brown
corroded
corrosion
decline
design
detail
dirty
distressed
frame
grunge
heavy
industrial
industry
iron
material
metal
metallic
obsolete
old
oxidized
panel
pattern
plate
red
retro
rivets
rough
rust
rustic
rusty
scratched
sheet
solid
stain
steel
strength
surface
template
texture
textured
vintage
wall
weathered
worn