Bohole ba mokoti oa ntloana bo bolela sebaka ho tloha bohareng ba pompo ea ntloana ho ea leboteng, e leng boholo ba sebaka sa phaephe ea drainage ea ntloana, ka kakaretso 300mm, 350mm, 400mm, 450mm, joalo-joalo. Ho khetha ntloana e nepahetseng, o tlameha ho qala ka khetha sebaka se nepahetseng sa mokoti.Bakeng sa ntlo e ncha ...
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