機器
accessory
background
black
close up
closeup
cut
cutter
cutting
equipment
fitter
fix
gas
gear
hand
holding
industrial
industry
instrument
inverter
iron
locksmith
male
man
manufacture
metal
metalwork
part
people
person
piece
pipe
pipeline
plasma
repair
service
sewage
sewerage
showing
supply
terminals
tool
weld
welder
welding
work