abstract
alloy
aluminum
backdrop
background
brushed
closeup
decay
dirty
durable
frame
gray
grey
grunge
heavy
industrial
industry
iron
material
metal
metallic
old
panel
pattern
plaque
plate
polished
polishedmetal
reflection
rough
rust
rustic
rusty
scratch
scratchedmetal
scratches
scratchtexture
sheet
shiny
silver
silverbackground
silvertexture
stainless
steel
surface
texture
textured
vintage
weathered
worn