金属産業
abstract
appliance
art and craft
backgrounds
bolt fastener
business
chrome
cnc machine
construction industry
conveyor belt
craft
dirty
electrical equipment
engineering
equipment
factory
helix
history
industry
iron metal
lathe
machine part
manufacturing
manufacturing equipment
mechanic
metal
metalwork
mill
model object
old
part of
plant
screw
silver colored
spare part
spiral
stainless steel
steel
store
technology
turning
wheel
workbench
working
workshop