Ikinyugunyugu ni ubwoko bwa valve ikoresha disiki yo gufungura no gufunga abanyamuryango kugirango basubize hafi 90 ° kugirango bafungure, bafunge cyangwa bahindure urujya n'uruza.Ikinyugunyugu ntigifite gusa imiterere yoroshye, ingano nto, uburemere bworoshye, gukoresha ibikoresho bike, kwishyiriraho bito ...
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