機器
architecture
bucket
build
builder
business
cement
concrete
construction
container
crane
detail
development
engineering
equipment
hoist
hook
house
improvement
industrial
industry
infrastructure
instrument
iron
job
load
machinery
material
mix
mixer
mobile
mortar
mover
moving
occupation
plasterer
repair
sand
site
steel
structure
surface
tool
transportation
up
work
worker
workplace