英文關鍵字
background
build
builder
cement
columns
concrete
construction
contractor
crushed
design
economic
economy
equipment
foundation
gravel
heavy
industrial
industry
infrastructure
leveling
light
liquid
marl
mason
metal
mix
mixer
mixing
mortar
piles
plaster
plasterer
plastering
pour
pouring
reinforced
reinforcement
retro
road
safety
screed
service
site
solution
steel
stone
structure
trowel
wet
work
worker
zone