英文關鍵字
air
argon
automatic
automotive
business
closeup
cnc
construction
control
conveyor
danger
electronics
energy
engineering
equipment
factory
fire
gloves
heat
hot
industrial
industry
iron
laser
machine
machinery
manufacture
manufacturing
mechanic
mechanical
melt
metal
metalwork
modern
nobody
plant
production
replaces
robot
robotic
spark
steel
technology
ventilation
welder
welding
work
working