equipment

gas

industry

metal

welding

hot

industrial

job

worker

copper

flame

manufacturing

steel

welder

work

repairman

construction

pipe

solder

soldering

bright

craftsman

engineering

factory

fire

iron

light

occupation

skill

spark

technology

working

adult

air

closeup

condition

conditioner

conditioning

connection

contractor

electrician

engineer

fitting

flux

home

hvac

installation

maintenance

mapp

people