機器
cobblestone
construction
conveyer
conveyor
conveyor belt
crushed
crusher
crushing
digging
dust
earth
ecology
employment
engineering
environment
equipment
excavation
extraction
factory
geology
granite
gravel
heap
heavy
industrial
industry
job
labor
machinery
manufacturing
material
mine
mining
occupation
open pit
outdoor
pebble
plant
pollution
process
production
quarry
resource
rock
rubble
stone
technology
work
working
定額
Rock crusher machine, crushing machinery, conveying crushed granite gravel stone in a granite quarry. Processing plant for crushed stone and gravel. Mining equipmentの素材 [FY310149903450]
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