Umnatha wesinyithi owandisiweyo uneentlobo ezininzi zobukhulu, ukwanezicelo ezininzi zeendlela, izakhiwo, amasango, izahlulo, iingcingo, izixhobo zasekhaya ezifana neeshelufa, iindlela zokuhamba, kunye nefenitshala. izinto, i-thermal insul...
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