PolyDADMAC, dzina lowoneka lovuta komanso lodabwitsa lamankhwala, ndi gawo lofunikira pa moyo wathu watsiku ndi tsiku. Monga woimira mankhwala polima, PolyDADMAC chimagwiritsidwa ntchito m'madera ambiri. Komabe, kodi mumamvetsetsa bwino za mankhwala ake, mawonekedwe ake, komanso kawopsedwe? Pambuyo pake, izi ...
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