機器
abrasive
angle
background
black
blade
circle
circular
closeup
construction
cut
cutout
cutting
detail
disc
disk
electric
equipment
grinder
grinding
hardware
industrial
industry
iron
isolated
manufacturing
metal
nobody
object
paper
rotary
round
sand
sander
sanding
sandpaper
saw
scratch
steel
stone
texture
tool
tools
wheel
white
work