機器
aerial
big
cargo
coal
crane
digger
dirty
driving
dust
environment
equipment
excavator
extraction
global
gold
heavy
huelva
huge
hydraulic
industrial
industry
iron
large
machinery
metal
mine
miner
mineral
open
ore
parking
power
quarry
resourse
rio tinto
rock
shares
soil
stone
storage
tractor
transport
transportation
truck
wealth
wheel
wheels
work
yellow