... air vent shutter ItemsDescriptionsModel No.XHB-MaterialAluminium alloy 6000series: 6063, 6061TemperT4,T5,T6Surface treatmentAnodized, powder coated, mill finish, electrophoresis, etc.Wall ... mould and produce as design drawingApplicationFor Central air-conditioning air outletSupply capacity1000mt per monthPriceMaterial price+Processing cost+ ... .100.20 aluminum extrusion profiles for air vent shutter