英文關鍵字
aeration
air
airconditioning
aluminum
architecture
background
bend
building
cleanup
conditioning
construction
cooler
cooling
design
dirty
duct
engineering
exhaust
exterior
flexibility
flow
heat
home
industrial
industry
large
manufacturing
metal
metallic
old
pattern
pipe
pipeline
repairs
retro
round
steel
structure
surface
system
technology
texture
tube
vent
ventilation
wall
zinccoated