说明

• Feature 1 new and high quality 2 for Wall Flange Connector Made of fine ABS material, sturdy High strength and corrosion resistance Smooth surface, small air resistance For connections between pipes Mounted at 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 photographs shown 3：as the image displays Package include:1 laptop computer Note: Please enable minor error thanks to manual dimension The colours may be a little distinction for the various visual display unit reveal

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审核