機器
apparatus
assembly
automatic
closeup
complex
construction
contemporary
control
device
electric
electricity
electrode
engineering
environment
equipment
factory
feed
gas
gasshielded
industrial
industry
innovation
machinery
maintenance
manufacturing
mechanic
metal
metalwork
mobility
oxygen
panel
plant
pressure
process
production
professional
safety
semiautomatic
technology
tool
vertical
weld
welder
wire
work
workshop