●Kuberako ikariso idafite ibyuma irimo nikel na chromium ibyuma, kwangirika, hamwe no kurwanya okiside, igihe kirekire cyo gukora.
●Ibyuma byumuriro wicyuma cyumuriro byumuyaga no gucana ibintu bibiri byiza biranga.Haba gufungura inshuro imwe cyangwa gukingura kabiri gukingura ibyuma byumuriro wicyuma, igice cyikirahuri gikunze kuba hafi mirongo inani kwijana ryimiryango yose, kandi ikirahuri gikoreshwa mumucyo urenga 70% byikirahure cyumuriro, byiza ubwikorezi, cyane cyane bubereye inyubako zo mu biro, amaduka manini, supermarket, birashobora kwerekana neza ubwiza bwinyubako.
●Inzugi z'umuriro zitagira umuyonga zirashobora gushushanywa kugirango zihuze imiterere nuburyo inyubako.Umwirondoro wibanze wibyuma byumuriro wumuriro ni ibyuma bidafite ingese, bitandukanye nibyuma, ibyuma bidafite ingese muburyo butandukanye, muburyo butandukanye.Iri bara ryogeje ibyuma bitagira umuyonga, byoroshye kandi bihamye, amabara meza, birashobora gushushanya hamwe nubwubatsi;zahabu cyangwa roza zahabu idafite ibyuma, ibara rya zahabu, ikoreshwa mumahoteri, clubs, ahantu hateranira, nibindi, birashobora gukora ikirere cyiza, cyiza kandi cyihuta;umukara wa titanium udafite ibyuma, ibara ry'umukara, ituze kandi birakomeye, kwihanganira ikizamini cyigihe, ni ubwoko busanzwe mu nyubako.
●Igihe cyo kurwanya umuriro inzugi zumuriro zidafite ingese ni iminota 60, zishobora kurwanya ubushyuhe bwinshi numuriro uterwa numuriro ukomeye.Inzugi z'umuriro z'icyuma zitagira umuyonga zikoresha ibikoresho, ibirahuri bitagira umuriro, impeta, ibyuma bifata umuriro, gufunga imiryango, n'ibindi byatsinze ikizamini cyo kurwanya umuriro hamwe nigihe cyo guhangana n’umuriro, bityo rero muri rusange igihe cyo kurwanya umuriro cy’imiryango y’ibirahure cyizewe.Ikadiri yuzuyemo ibikoresho bidashobora gukongoka kandi umugozi wumuriro wumuriro waguka iyo uhuye nubushyuhe, izi ngamba zose zirashobora kongera igihe cyo kurwanya umuriro kumuryango wumuriro wikirahure no kunoza imikorere.
