機器
break
builder
bulldozer
coal
components
construction
container
deal
delivery
digger
driver
duty
employee
engine
engineer
equipment
excavator
fork
forklift
hardhat
hat
heavy
helmet
hose
hydraulic
industrial
industry
large
machinery
man
manufacturing
mechanic
miner
mining
operator
problem
professional
relax
repair
safety
site
storage
sunset
technician
tractor
truck
warehouse
wheel
worker