aluminum
アルミニウム
abstract
alloy
aluminium
art
background
bar
black
border
brush
burnish
closeup
dark
design
gray
grey
grunge
hard
heavy
highlight
industrial
industry
iron
ironworks
line
material
metal
metallic
old
pattern
plate
polish
row
scrape
sheet
shiny
silver
smooth
square
steel
straight
string
stripe
style
surface
template
texture
textured
tough
wall