adult
architect
architecture
blueprint
building
building contractor
caucasian ethnicity
construction industry
construction site
construction worker
cooperation
development
discussion
engineer
engineering
equipment
expertise
foreman
fuel and power generation
hardhat
helmet
industry
looking
machinery
males
manager
men
mid adult
mining
occupation
outdoors
plan
planning
professional occupation
protective workwear
reflective clothing
reflector
safety
smiling
standing
surveyor
teamwork
technology
two people
women
work helmet
working
yellow