機器
asphalt
australia
backhoe
blue
blue background
building
civil engineering
coal
coal mining
construction
construction site
contractor
demolition
development
dig
digger
ditch
drainage
earth
earth moving
earthworks
equipment
excavating
excavation
excavator
foundation
ground
groundworks
heavy
heavy equipment
job
loader
machinery
mining
mining industry
open pit
open pit mine
open pit mining
preparation
quarry
recycling
reuse
sand
shovel
site
sky
trench
vehicle
work
定額
Excavator working at open pit mining. Backhoe digs gravel in sand quarry on blue sky background. Recycling old asphalt at a landfill for the disposal of construction wasteの素材 [FY310146223131]
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