3d
adapter
adaptor
aluminium
background
basement
branch
building
chrome
circle
conditioner
conditioning
connector
construction
duct
ductwork
electric
electricity
fitting
funnel
galvanized
home
hood
hose
hvac
illustration
industrial
isolated
machinery
metal
pipe
pipeline
piping
power
rectangular
reducer
rendering
round
shiny
steel
symbol
system
technology
tee
transition
tube
vent
ventilation
white
zinc