機器
architecture
building
close up
construction
control
craftsman
danger
drilling
equipment
factory
female
hand
heavy
helmet
hole
industrial
industry
iron
job
man
manual
material
mechanic
metal
motor
people
plate
platform
production
protection
quality
repair
safety
shop
site
skill
steel
structure
team
teamwork
technology
tool
transport
welder
welding
wooden
work
worker
workshop