英文關鍵字
air
back
blast
blaster
blasting
car
cleaning
construction
device
dirty
dust
engineering
equipment
factory
fix
gas
grit
gun
heavy
helmet
industrial
industry
man
manual
mask
metal
occupation
overalls
oxide
paint
part
physical
polishing
power
pressure
protection
protective
repairing
rust
sand
sandblast
sandblaster
shot
shotblast
shotblaster
steel
suit
surface
surfaces
worker