High quality plastic steel window

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Advantages of flat opening inverted plastic steel window

Advantages of flat opening inverted plastic steel window

1. Optimize ventilation: especially in winter, when the temperature difference inside and outside the room is too large, and the windows are inverted inside, it can not only open the windows for ventilation, but also the air enters the room from the top or side of the windows, and people will not be exposed to the risk of wind chill …

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