英文關鍵字
construction
craftsperson
dark
electrodes
engineering
equipment
eye
eyewear
fabricator
factory
first
flame
gopro
hard
heat
helmet
hot
industry
iron
light
manual
manufacturing
mask
mechanical
melt
merge
metal
metalwork
motion
occupation
person
production
protection
protective
safety
site
slow
sparks
steel
structures
tank
torch
train
valve
weld
welder
welding
work
worker
workwear