abrasive
abstract
alloy
aluminium
aluminum
background
blank
chrome
cross
detail
diamond
fade
floor
gray
grey
grid
grunge
industrial
industry
iron
line
material
metal
metallic
panel
patina
pattern
plate
polished
rough
scratch
seamless
shape
sheet
shiny
silver
skid
slip
solder
stainless
steel
surface
texture
textured
tile
tough
wrap