機器
background
blade
circle
circular
construction
cut
diamond
die
disc
drill
electric
energy
engineering
equipment
factory
fire
flash
grind
grinder
hand
heat
industrial
industry
iron
light
manual
manufacture
manufacturing
mechanic
metal
power
production
protection
round
safety
saw
spark
speed
steel
technical
technology
tool
turning
weld
welding
wheel
work
worker
workshop