英文關鍵字
crane
floor
installation
line
symbol
outline
construction
excavation
footing
reinforcement
columns
casting
windows
process
linear
contour
background
lined
online
builder
architecture
city
development
facade
foundation
object
house
project
property
step
roof
roofing
structure
electricity
housing
level
truck
monochrome
icon
motion
graphic
animation
pictogram
hd
animated
item
sign
black