機器
breaker
breaking
broken rock
broken stone
bulk
caucasian
civil engineering
commercial
construction
construction site
construction worker
crusher
earthworks
engineer
engineering
german
germany
goods
gravel
grinding
heavy
industrial
industry
job
man
materials
men
men at work
occupation
orange
people
professional
quarry
road
road building
road works
rock
sand
site
stone breaker
stone crusher
stones
underground
waste
woman
work
worker
working