◆ Texture of material: Aluminium alloy
◆ Blade shape: Horizontal blade, blade is herringbone type, with handle switch, outer frame 32mm wide flange.
◆ Outer frame: Door hinge type
◆ The size can be customized as required.
◆ Conventional blade direction: transverse blade, blade in herringbone shape, with handle switch, outer frame 32mm wide flange.
Material: aluminum alloy;
◆ Outer frame structure: door hinged;
Optional accessories: nylon filter screen, aluminum screen, stainless steel insect screen
◆ Surface treatment: electrostatic spraying / anodizing;
Also known as: operating room under the return air. The inner layer is composed of miter gate blades, which are opened and closed in opposite direction to adjust the air volume, which can effectively prevent direct wind blowing. It is mainly used for air return in the operation of hand room and installed on the side wall or ceiling.
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