abstract
aluminum
backdrop
background
blank
boundary
chrome
construction
corrugated
corrugation
design
door
exterior
fence
galvanized
garage
gray
grey
grunge
heavy
horizontal
industrial
industry
iron
line
material
metal
metallic
panel
parallel
pattern
plate
protect
reflect
rippled
scaffold
sheet
shine
shiny
silver
stainless
steel
striped
surface
tech
texture
wall
zinc