aluminum
アルミニウム
abstract
alloy
aluminium
anodized
background
bar
closeup
construction
cross
crosssection
cut
development
element
engineering
extrude
extrusion
helgidinson
industrial
industry
iron
isolated
manufacture
manufacturing
metal
modular
pattern
profile
reflection
sample
section
shape
shaped
sharp
sheet
silver
slice
slots
stainless
steel
stock
straight
structural
technical
tslotted
tube
white
work
worker
workshop