英文關鍵字
abrasive
blast
blasting
clean
construction
dust
dusty
equipment
fabrication
force
gear
hazard
hazardous
health
helmet
hose
industrial
industry
industy
iron
manufacturing
mask
metal
metallurgical
pipeline
preparation
pressure
production
protection
removal
rust
safe
sand
sandblast
sandblaster
sanding
shotblast
smelting
smooth
steel
stream
suit
technology
undustrial
weld
work
worker