alloy
aluminum
backgrounds
blank
cereal
chrome
closeup
cold
construction
cool
dirty
effect
effortless
fastening
force
grained
gray
grunge
heavy
industrial
industry
iron
light
macro
material
metal
metallic
panel
pattern
plant
plaque
plate
platinum
polish
ramp
reflection
screw
sheet
shiny
silver
simplicity
smooth
stainless
steel
strength
surface
technology
texture
titanium
toughness