Itondekanya rya fibre y'ibirahure Ukurikije imiterere n'uburebure, fibre y'ibirahure irashobora kugabanywamo fibre ikomeza, fibre ndende hamwe n'ubwoya bw'ikirahure; Ukurikije ibirahuri, birashobora kugabanywamo alkali yubusa, irwanya imiti, alkali nyinshi, alkali yo hagati, imbaraga nyinshi, ela ndende ...
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