aluminum
アルミニウム
abstract
alloy
armor
art
backdrop
background
banner
blank
board
brushed
construction
design
frame
gray
hard
industrial
industry
iron
layout
line
material
metal
metallic
nail
old
panel
piece
plate
plug
rectangle
rivet
row
screw
sheet
silver
stainless
steel
surface
tack
technology
template
texture
textured
vintage