1. Kwimibhobho eneemfuno eziphezulu zokucheba, ngenxa yokusetyenziswa kwegesi engalinganiyo ngabasebenzisi, ukuguquguquka koxinzelelo lwepayipi rhoqo, kunye noxinzelelo olutshintshileyo oluthwalwa yimibhobho yensimbi, iziphene ezikhoyo kwimibhobho ziya kwanda phantsi koxinzelelo olutshintshanayo. Imibhobho yentsimbi edityanisiweyo ene-Spiral ene-welds ezininzi kunye...
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