1. Ikozwe mu cyuma cyiza cyo mu rwego rwo hejuru-karuboni yatewe cyera, ifite uburebure bwa 1.2mm, imbaraga nyinshi kandi zikorera imitwaro. 2. Inzego 5 zo guhindura uburebure. 3. Ukuboko kwagutse kandi kurashobora guhinduka. 4.
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