1.Irangi ryiza cyane, ukoresheje ubushyuhe bwinshi, acide ikomeye, fosifatique, putty, gutera hamwe nibindi bikorwa byo kurwanya ingese, kugirango buri gicuruzwa gishobora kurwanya neza isuri yimvura.2.Imoteri iramba, igishushanyo mbonera cya 180 °, imbaraga nke gukoresha, birenze urugero.3.Umutekano urwanya ubujura, gusa hamwe na ...
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