breaking
color image
construction site
construction worker
control
cutting
destruction
development
economic
economy
employment
equipment
factory
flame
harbor
horizontal
industrial
industry
infrastructure
investment
job
labor
males
manufacturing
men
metal
mid adult
navy
occupation
oceania
one person
people
pollution
protection
recovery
recycling
sheet
ship
shipping
site
spark
steel
torch
transportation
welder
welding
welding torch
working
workshop