Kumenyekanisha birambuye igitutu cyasizwe ibyuma

. Nyuma yo gukata, gukata, gufungura, Hemming nibindi bikorwa biratunganywa kugirango bitange ibicuruzwa bisabwa nabakiriya.

2. Ibyuma byo gusya ibyuma 2 ni 40mm; Ibyuma byo gusya ibyuma 3 ni 60mm. Umwanya uri hagati yambukiranya ibyuma byo gusya ibyuma 1 ni 100mm, naho ibyuma byo gusya ibyuma 2 ni 50mm.

3. . Ibyuma byibyuma birashobora kugabanywamo ibice bishyushye byogosha ibyuma byogosha ibyuma, ibyuma bisize irangi byatewe nicyuma hamwe nibyuma byumwimerere byogosha ukurikije uburyo bwo kuvura hejuru.
4.
, guhumeka, gucana, gukwirakwiza ubushyuhe, kwirinda-guturika, imikorere myiza yo kurwanya skid, nta kwegeranya umwanda, nta kwegeranya imvura, shelegi, nta kwegeranya amazi, kwisukura, kubungabunga byoroshye nibindi biranga.
5.