機器
architecture
background
block
build
building
business
cement
commercial
concrete
construction
contractor
engineering
equipment
finish
finishing
float
floor
grinder
grinding
helicopter
improvement
industrial
industry
labor
level
mechanized
operation
polishing
pour
power
process
professional
project
roughness
sander
screed
self
site
slab
smooth
smoothing
steel
surface
technology
tool
trowel
wet
work
worker