说明

• Feature 1 new and advantageous 2 for Wall Flange Connector Made of effective ABS material, durable High power and corrosion resistance Smooth surface, small air resistance For connections between pipes Mounted on the wall as a ventilation duct Can be used as air inlet and outlet, put in in indoor ventilation package 1：ABS 2：As the images shown 3：as the image displays Package include:1 personal computer Note: Please enable minor error due to handbook size The colours may be a little difference for the various visual display unit reveal

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审核