Chipata chotchinga cha Flap, chomwe chimadziwikanso kuti wing gate, ndi mtundu wa njira zowongolera zolowera zomwe zimagwiritsidwa ntchito kuwongolera kutuluka kwa anthu kulowa ndi kutuluka mnyumba kapena malo.Amagwiritsidwa ntchito m'malo monga ma eyapoti, kokwerera masitima apamtunda, ndi malo ena onse omwe amafunikira ...
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