architect

build

carpenter

caucasian

contractor

designer

development

doctor

employee

energy

engineer

engineering

estate

face

facility

factory

hard

hardhat

hat

heavy

helmet

industrial

job

labor

male

man

manufacture

manufacturing

motion

occupation

person

portrait

power

production

profession

professional

protection

protective

real

repairman

safety

service

slow

smiling

structure

successful

technical

technology

uniform

workers

working

workman