機器
action
architecture
build
builder
building
business
cement
concrete
construction
construction site
contractor
craftsman
design
equipment
ground
home
house
improvement
industrial
industry
infrastructure
job
labor
machinery
maintenance
man
manufacture
mason
material
mixing
mortar
occupation
outdoor
power
professional
renovation
repair
sand
screed
site
smooth
smoothing
stone
structure
technology
tool
work
worker
workplace