abstract
bright
cable
construction
current
cutting
cutting machine
dangerous
dark
dazzle
electricity
engineering
equipment
experience
factory
fire
flash
glasses
grinder
helmet
industrial
industry
light
manufacture
manufacturing
mask
metal
metalwork
people
pipe
pipeline
production
protection
protective
safety
sawing
skilled
smoke
spark
steel
technology
tool
voltage
work
worker
workplace
workshop