1. Kumapayipi anezidingo zokushefa okuphezulu kakhulu, ngenxa yokusetshenziswa kwegesi okungalingani ngabasebenzisi, ukuguquguquka kwengcindezi yamapayipi njalo, kanye nokucindezela okushintshwayo okuhlushwa amapayipi ensimbi, amaphutha akhona emapayipini azokhula ngaphansi kwengcindezi eshintshanayo. Amapayipi ensimbi ashiselwe okuvunguza anamashisela amaningi...
Funda kabanzi