空中扫(反对刀片扫)

air damperScrew Type Mount directly on the neck of the grilles. Control the air volume from full flow to shut off. Model: OBD-SS steel screwdriver slot type OBD-LO steel lever operator type OBD-A-SSaluminium screwdriver slot type OBD-A-LOaluminium lever operator type OBD-AB-SS aluminium blade steel frame screwdriver slot type OBD-AB-LO aluminiumb lade steel frame lever operator type Plastic Gear Type Mount directly on the neck of the grilles. Control the air volume from full flow to shut off. Using plastic gear to make the damper work quietly when their flow is strong Model: OBD-PSS steel with plastic gear screwdriver slot type OBD-PLO steel with plastic gear lever operator type OBD-A-PSS aluminium with plastic gear screwdriver slot type OBD-A-PLO aluminium with plastic gear lever operator type OBD-AB-PSS with plastic gear aluminium blade steel frame screwdriver slot type OBD-AB-PLO with plastic gear aluminium blade steel frame lever operator type