機器
architecture
big
blue
brick
build
building
business
cable
cement
concrete
construction
crane
culture
development
driver
engineering
equipment
exterior
heavy
high
hoisting
holding
hook
hydraulic
industrial
industry
iron
job
labor
labour
machinery
metal
motor
piles
piling
pole
professional
project
property
residential
scaffold
scaffolding
site
sky
steel
strength
structure
tall
technology
tool
tower
winch
work
worker
working