機器
action
background
banner
beam
business
carpentry
closeup
cnc
cut
cutter
cutting
danger
detail
engine
factory
fire
flame
foundry
gas
hand
heat
industry
iron
job
laser
machinery
manufacture
manufacturing
material
mechanical
metal
metallurgy
metalwork
plasma
plate
precision
production
robot
sheet
shop
spark
steel
tech
technology
tool
welding
work
worker
workshop