機器
beam
boom
building
buildings
business
casting
cement
concrete
concretepump
construction
contractor
control
crane
development
engineer
equipment
erector
filling
formwork
hose
industrial
industry
job
laborer
lattice
machinery
man
manual
mix
mixer
pipe
pouring
project
pump
pumping
remote
safety
site
structure
system
technology
trailermounted
transport
truck
tube
vehicle
work
worker
workman