architect

build

building

construction

craftsman

development

energy

engineer

engineering

equipment

factory

heavy

helmet

industrial

industry

iron

job

light

machine

male

man

manufacture

manufacturing

metal

metalwork

metalworker

modern

occupation

people

person

pipeline

plant

power

production

profession

professional

protection

safety

spark

steel

successful

technology

transportation

uniform

weld

welder

welding

work

worker

workplace