1.Ukuphefumula Ukuphefumula kufanele kucatshangelwe oseyili, ikakhulukazi oseyili bezempi. Izici ezinomthelela wokungena komoya zihlanganisa ukwakheka kwe-substrate, ukuminyana, izinto ezibonakalayo, uhlobo lwesicoci esingangeni manzi, ukunamathela kwe-resin, njll. Ngokukhula kokunamathela kwe-resin, i-air permeabili...
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