英文關鍵字
pipe
ventilation
industry
warehouse
industrial
technology
modern
duct
engineering
system
factory
metallic
pipeline
air
cooling
heat
tube
steel
heating
circulation
infrastructure
silver
interior
installation
product
aluminium
assembly
chrome
chimney
new
vent
job
labor
many
shiny
conditioner
conditioning
energy
hvac
repair
stack
stainless
ceiling
finished
brilliant
climate
fire
indoor
investment