機器
apartment
build
business
cement
city
concrete
construction
constructor
crane
day
development
engineer
equipment
exterior
foundation
framework
future
growth
high
housing
industrial
industry
installing
investment
iron
machinery
material
progress
project
property
real estate
residence
rod
safety
scaffold
site
sky
skyscraper
steel
structure
survey
technology
tool
tower
town
under construction
urban
wire
work