機器
abrasive
action
activity
angle grinder
asphalt
blade
cement
circular
concrete
construction
cut
cut off
cutter
cutting wheel
development
diamond cutting
diamond ring
disc
disk
dust
equipment
grinding
industrial
industry
infrastructure
job
local
maintenance
pavement
pit
potholes repair
power
reconstruction
repair
repaving
restore
road
saw
seam
surface
tool
under construction
works