Umuyoboro w'icyuma usudira udafite ibyuma bikozwe mu gukora impapuro z'icyuma mu buryo bwa tube hanyuma ugasudira icyarimwe. Byombi bishyushye kandi bikonje bikoreshwa mugukora igituba kitagira umwanda, hamwe nubukonje butanga kurangiza neza no kwihanganira gukomera kuruta gushyuha. Inzira zombi zirema umuyoboro wicyuma utagira ingese urwanya ruswa, ugaragaza imbaraga nyinshi kandi ziramba.

Umuyoboro w'icyumaisukuye kandi byoroshye kandi irashobora guhindurwa byoroshye, gutunganywa, cyangwa kugororwa kugirango habeho imiterere igoramye. Uku guhuza ibintu bituma umuyoboro wibyuma udafite umwanda uhitamo neza mubikorwa byubaka, cyane cyane aho imiyoboro ishobora guhura nibidukikije byangirika.

Ku ya 1 Ugushyingo 2024, Komisiyo mpuzamahanga y’ubucuruzi muri Amerika (USITC) yashyizeho isuzuma rya gatatu rirenze izuba rirenga ku bijyanye no kurwanya guta (AD) n’inshingano zo kurwanya ibicuruzwa (CVD) ku miyoboro y’icyuma idasudira ituruka mu Bushinwa, ndetse n’isuzuma rya kabiri rirenga AD imisoro ku bicuruzwa bimwe biva muri Maleziya, Tayilande, na Vietnam, kugirango hamenyekane niba iseswa rya AD na CVD risanzweho ku bicuruzwa bishobora kuganisha ku gukomeza cyangwa kongera gukomeretsa ibintu ku nganda zo muri Amerika imbere igihe giteganijwe.

Ku ya 4 Ugushyingo, Minisiteri y’ubucuruzi muri Amerika (USDOC) yatangaje ko hatangijwe isuzuma rya gatatu rya AD na CVD izuba rirenze ku bicuruzwa biva mu Bushinwa, ndetse n’isubiramo rya kabiri izuba rirenze ku bicuruzwa bimwe biva muri Maleziya, Tayilande, na Vietnam.

Ababifitemo inyungu bagomba gutanga ibisubizo byabo kuri iri tangazo hamwe namakuru akenewe bitarenze itariki ya 2 Ukuboza 2024, kandi ibisobanuro ku bisubizo bihagije bigomba gutangwa bitarenze ku ya 2 Mutarama 2025.

Icyiciro 300ibyumaikorerwa mubicuruzwa bitandukanye birimo imiyoboro yicyuma, imiyoboro yicyuma, nibindi bicuruzwa bitandukanye. Byombi 304 na 316 ibyuma nibyuma bishingiye kuri nikel byoroshye kubungabunga, kurwanya ruswa, no gukomeza imbaraga nigihe kirekire mubushyuhe bwinshi.

Kumenya icyiciro cyicyuma cyiza kubyo usaba biterwa nubushake bugenewe kimwe nibidukikije nkubushyuhe cyangwa guhura na chloride.

• Ubwoko 304 ibyuma bidafite ingese birwanya ruswa kandi byoroshye kubisukura, bigatuma ubwoko bwibyuma bitagira umwanda bikoreshwa mugukata nibindi bice byibyuma. 304 ibyuma bidafite ingese bikoreshwa kenshi mukubaka no gushushanya porogaramu.
• Ubwoko 316 ibyuma bitagira umwanda bisa na 304 bitagira umwanda kuko nabyo birwanya ruswa kandi byoroshye kubisukura. 316 idafite ingese, ariko, ifite inyungu nkeya kuko ariko irwanya ruswa iterwa na chloride, imiti, hamwe na solde. Iyi ngingo yinyongera ituma ibyuma 316 bidafite ingese bikemurwa mubisabwa aho usanga buri gihe hagaragara imiti cyangwa kubisohoka hanze aho usanga umunyu. Inganda zizwiho gukoresha ibyuma 316 bidafite ingese zirimo inganda, kubaga, ninyanja.

umuyoboro w'icyuma