英文關鍵字
builder
building
cement
closeup
concrete
construction
contractor
day
drains
equipment
fence
flowing
foreman
formwork
foundation
gutter
house
improvement
industrial
industry
infrastructure
ingredient
install
iron
labor
liquid
machine
male
material
metal
mixer
mixture
mortar
occupation
pour
pouring
process
rebar
retaining
special
structure
tank
tool
transport
transportation
trough
truck
wall
work
worker