arc

blue

bright

busy

carries

clip

construction

coveralls

craftsmen

electric

engineering

equipment

fabricator

facilities

factory

fire

foundry

gas

glasses

gun

heat

heavy

high

industrial

industry

iron

jump

labor

light

machinist

man

manual

manufacturing

mask

metal

occupation

out

performs

pipe

plate

power

protection

red

safety

sparks

steel

structures

technology

temperature

the

tools

torch

video

welder

welders

welding

worker

working

workshop