機器
action
aerospace
automation
background
banner
beam
business
closeup
cnc
cut
cutter
cutting
detail
energy
engine
engineering
factory
fire
flame
foundry
gas
heat
industry
iron
laser
line
macro
manufacture
manufacturing
material
mechanical
metal
metallurgy
metalwork
plasma
plate
process
production
robot
sheet
spark
steel
tech
technology
tool
welding
work
worker
workshop