Kwimozulu eshushu kunye neshushu ehlotyeni, kukho imvula eninzi, kwaye imozulu ishushu kwaye inomswakama emva kwemvula. Kulo mbuso, umphezulu weemveliso ezenziwe ngamagalvanized uthandeka kwi-anti-alkali (eyaziwa ngokuba yi-rust emhlophe) isiganeko. Ukuba iimpahla ezifakwe etafileni azithathwanga ngexesha, ukuba azikho u...
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