PVC drainage pipes

Njira yoperekera madzi am'nyumba ndi ngalande ndi “njira yamoyo” za nyumba, koma mipope yachitsulo yachikhalidwe ndi yosavuta kuchita dzimbiri, mapaipi a konkire ndi ochuluka komanso ovuta kukhazikitsa, ndi mapaipi a PVC okhala ndi kuwala, dzimbiri...