abstract
aluminium
aluminum
backdrop
background
brushed
chrome
closeup
color
design
detail
dirty
frame
grunge
industrial
iron
lines
material
metal
metallic
pattern
plate
plating
platinum
polished
purple
rivet
riveted
rivets
rough
rustic
rusty
scary
scratch
scratched
scratches
sheet
shiny
silver
stainless
steel
surface
texture
textured
violet
wall
wallpaper
weathered
worn