機器
abstract
automotive
background
bolt
chrome
close
closeup
cnc
detail
diameter
die
engineering
equipment
factory
group
heavy
industrial
industry
iron
lathe
macro
manufacturing
many
material
mechanical
metal
metallic
metalwork
milling
new
nobody
pattern
rod
round
screw
shine
shiny
silver
stainless
steel
structure
technology
thread
threaded
tool
turn
wheel
work