asian
business
check
commander
confident
construction
electric
electricity
energy
engineer
engineering
factory
govern
hat
helmet
industrial
industry
inspect
interior
look
male
man
manager
memo
metal
note
occupation
orange
paper
people
person
pipe
pipeline
piping
portrait
power
powerhouse
professional
record
safety
smart
standing
survey
technician
uniform
work
worker
workman