Umuyoboro w'icyuma
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304 ibyuma bidafite ingese bidafite isuderi ya karubone acoustic ibyuma
Umuyoboro udafite umuyonga udafite umuyaga urwanya umwuka, umwuka, amazi nizindi ntege nke zangirika ziciriritse na aside, alkali, umunyu nizindi miti yangiza imiti yangirika yumuyoboro wibyuma, urukuta runini, ni ubukungu kandi bufatika, ubunini bwurukuta , igiciro cyacyo cyo gutunganya kizazamuka cyane.Mu kunama, imbaraga za torsional nimwe, uburemere bworoshye, bityo rero ikoreshwa cyane mugukora ibice byubukanishi nubwubatsi.