機器
background
blade
circle
circular
construction
cut
cutting
disc
disk
electric
engineering
equipment
factory
flash
grind
grinder
grinding
industrial
industry
iron
isolated
light
man
manual
manufacture
manufacturing
mechanic
metal
power
production
protection
round
safety
saw
spark
speed
steel
technical
technology
tool
turning
welding
wheel
white
work
worker
workshop