FRP exhaust fan ndi chinthu chomwe chimagwiritsidwa ntchito mosiyanasiyana.Ili ndi ubwino wamapangidwe osavuta, mtengo wotsika mtengo, kupukuta kosavuta, kakulidwe kakang'ono, kuyika bwino, ndipo ndi yotchuka kwambiri pakati pa anthu.Mu fakitale, itha kugwiritsidwa ntchito kutulutsa mpweya wotayirira mumsonkhanowu, komanso itha kugwiritsidwanso ntchito ...
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