activity

architect

asia

asian

build

businessman

constractors

construction

discussing

discussion

distribution

energy

engineer

engineering

fabric

factory

foreman

hardhat

hat

industrial

industry

labor

machine

male

man

management

manufacturing

mechanic

metal

metalworker

oil

oilindustry

oilrefinery

operator

order

people

person

plant

protection

safety

talking

team

technology

two

worker

workers

working

workplace