Kuyini ukubumba umjovo futhi kusebenza kanjani
Kuyini ukubumba komjovo futhi kusebenza kanjani Ukubumba umjovo kuyinqubo yokwakha kusetshenziswa izibungu. Izinto ezifana nama-synthetic resins (amapulasitiki) ziyashiswa futhi zincibilike, bese zithunyelwa esikhunjeni, lapho zipholile khona ukuze zenze umumo oklanyelwe. Ngenxa yokufana nenqubo yokujova uketshezi...