英文關鍵字
abrasive
air
blast
blasting
cleaning
construction
dirty
dust
equipment
factory
furnace
grit
helmet
industrial
industry
iron
man
manufacturing
mask
metal
metallurgical
nozzles
part
preparation
pressure
production
protection
removal
remove
room
rust
sand
sandblast
sandblaster
sandblasting
sanding
shot
steel
suit
surfaces
technology
worker