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.