英文關鍵字
activity
architecture
base
build
building
business
cement
chute
concrete
concreting
construction
contractor
contractors
dirty
engineering
equipment
fill
finisher
flatten
floor
flow
form
gravel
house
industrial
industry
infrastructure
iron
level
machine
machinery
metal
mixer
mixing
pipe
pour
pouring
rebar
reinforcement
site
spreading
structure
technology
tool
truck
wet
work
worker