Powder Colled Rolled Steel Rectangle Air Volume Control Damper
Opposed blade air damper is constructed by an opposed blade damper
and an electromotor. The blades are linked to each other, as long
as connecting to power supply, all the blades will move; the air
ventilation and cervix area will get larger or smaller. Compared
with traditional products, it is superior at low noise and stable
blades adjustment and so on.