機器
angle
black
blade
construction
cut
cutter
detail
disc
electric
electrical
engineering
equipment
factory
fire
fitter
flash
gloves
green
grind
grinder
hand
heavy
industrial
industry
iron
light
man
manual
manufacture
manufacturing
mechanical
metal
power
production
protection
rust
safety
skill
spark
steel
steel plate
technical
tool
welding
wheel
white gloves
work
worker
workshop