amakuru
Intoki y'amaso ya curler irazamura no gukubita byoroheje, itanga karemano, kirekire kirekire kumurongo wa buri munsi cyangwa ibihe bidasanzwe.
Umutekano kandi utayeho, wita ku ruhu
Kuva mu gishushanyo kugeza gukora, tekereza umutekano wuruhu mubice byose. Ubuvuzi bworoshye kugirango wirinde gushushanya uruhu;
Ubukorikori bukwiye, igenzura ryuzuye
Hamwe na micrometer yo gukora ikoranabuhanga, ikosa ryo gusukura pore rigenzurwa neza muri mm 0.01, ishobora kwinjira mubice kandi ikuraho neza umwanda n'umukara.