Urimo uhura nibi bibazo byo gushira urukuta?
Kuma vuba Impamvu 1.Kubera ubushyuhe bwinshi mugihe cyizuba, amazi azimuka vuba mugihe cyo gukora urukuta rusakaye, rusanzwe ruboneka mugice cya kabiri cyubwubatsi. 2.Gufata amazi ya Cellulose ether ni mabi, cel yujuje ibyangombwa ...
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