英文關鍵字
abrasive
blast
blasting
clean
cleaning
construction
dust
dusty
equipment
fabrication
force
gear
hazard
hazardous
health
helmet
hose
industrial
industry
industy
laser
manufacturing
mask
metal
pipeline
pressure
production
protection
safe
sand
sandblast
sandblasting
sanding
smooth
stream
suit
undustrial
weld
work
worker