Kukhona izindinganiso zokwamukela eziyi-8: [1] Lawula ngokuqinile umthwalo wokwakhiwa kophahla, iphansi kanye nesiteji, ungadluli umthamo wokuthwala wemishayo, ama-trusses, iphansi kanye nebhodi lophahla.Ngemva kokwakhiwa kwamayunithi omkhathi, igebe phakathi kwephansi lekholomu nendawo engaphezulu ye-fo...
Funda kabanzi