機器
activity
aggregate
belt
building
bulldozer
construction
conveyor
crush
crusher
development
earth
engineering
equipment
excavation
excavator
factory
heavy
hydraulic
industrial
industry
job
landscape
line
machinery
manufacturing
material
mine
mineral
mountain
pit
plant
production
pulverize
quarry
quarrying
rock
sand
sandpit
site
stone
technology
transportation
work