Sechinyorwa chekudhinda, firimu repurasitiki remabhegi ekurongedza chikafu rine nhoroondo ipfupi. Iyo ine mabhenefiti ekureruka, pachena, hunyoro kuramba, oxygen kuramba, airtightness, kuoma uye kupeta kuramba, yakatsetseka pamusoro, uye kuchengetedza kwezvinhu, ...
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