builder
building
construction
cutting
danger
electrode
elements
engineering
environment
equipment
flame
flash
heat
helmet
horizontal
industrial
industry
job
junkyard
landfill
light
man
manufacturing
mask
material
metal
metalwork
occupation
outdoors
people
person
real
recycling
repairing
safety
scene
scrap
sky
smoke
spark
steel
tool
torch
welder
welding
worker
working
workplace