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1. The frame & swirl blades are high quality extruded aluminum sheet and galvanized sheet construction with advantages of corrosion resistance and rigidity 2. It consists out frame and inner pannel. The inner pannel is fixed to the out-frame by hinges on one side and by screw on the other side 3. The pannel can be easily open to allow for maximum flexibility in the installation, maintenance. They are mainly used for studios, hospitals, theaters, classrooms, concert halls, libraries, recreation hall, theater lounge, general offices, shops, hotels, restaurants and gymnasium, and so on.

1.Materials: extruded aluminum alloy (A6063) 2.Blades: can be adjusted manually and individually to provide air deflection in both horizontal and vertical planes. 3.Grilles have two sets parallel blades: a.Vertical on the front and the horizontal at the rear. b.Horizontal on the front and the vertical at the rear 4.Surface Finish: Anodized. 5.Color: Original color of anodization. 6.Optional accessory: Opposite Blade Damper; Neck adaptor.

1.material: Aluminum profile 2.Size: customerized 3.Color: Anodized or powder coated accordin to Ral color. 4.Dampers are installed for duct to adjust airflow 5.Excellent appearance, fit for supply airflow. 6.3 kinds of handle for optional: Nylon, Metal & aluminum 7.Raw material of damper aluminum profile & related accessaries are available

aluminum flexible duct is built of the aluminium laminated with the polyester. It was designed especially for the needs of the ventilation and air conditioning market. aluminum flexible duct has the advantage of no need to use special tools for cutting or fixing, it does not emit toxic gases in high temperatures.

1.The frame & blades are high quality extruded aluminum profiled construction with advantages of corrosion resistance and rigidity. 2.Grilles have two sets parrallet blades 3.DG-AV: vertical on the front and the horizontal at the rear, 4.DG-AH: horizontal on the front and the vertical at the rear 5.Blades can be adjusted mannually and individually to provide air deflection in both horizontal and vertical planes. 6.Maximum affective pressure areas can be achieved when the blades are positioned at 0 degree.