機器
blade
circle
circular
close
closeup
construction
cutting
depth
detail
disc
disk
electric
engineering
equipment
factory
focus
grind
grinder
hand
industrial
industry
iron
light
low
manufacture
manufacturing
mechanic
metal
part
power
production
protection
rotate
round
safety
saw
spark
speed
spin
steel
technical
technology
tool
turning
up
wheel
work
worker
workshop