aluminum
アルミニウム
abstract
backdrop
background
black
blue
board
chrome
dark
design
grate
gray
grille
grunge
hole
horizontal
industrial
iron
ironworks
material
mesh
metal
metal plate
metallic
oxidized
panel
pattern
perforated
plaque
plate
rough
round
shape
sheet
silver
stainless
steel
surface
technology
texture
textured
wall
wallpaper
white