Chowumitsa mpweya chosinthira pafupipafupi ndi mtundu wa zida zomwe zimatsuka, kuumitsa ndikuziziritsa mpweya woponderezedwa kudzera pa condensers, dehumidifiers ndi zinthu zina.Zida zitha kugwiritsidwa ntchito kwambiri m'makampani opanga mankhwala, chakudya, zamagetsi, nsalu, firiji ndi ...
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