Muri Kanama, igiciro rusange cya silicon nitride ifu yicyuma (Si: 48-52%, N: 30-33%, Fe: 13-15%), igiciro rusange cyisoko cyari amafaranga 8000-8300 / toni, cyari hafi Amafaranga 1000 / toni arenze ayo mu ntangiriro z'umwaka, kwiyongera hafi 15%, mu gihe izamuka ry’ibiciro ryari hejuru ya 20% ugereranije n’icyo gihe cyashize umwaka ushize.(Ibiciro byavuzwe haruguru nibiciro byimisoro-nganda).

Kubera izamuka ryinshi ryibiciro byibikoresho fatizo bya silicon icyuma muri uyumwaka, bigatuma ibiciro byumusaruro wibyuma bya nitride ya silicon, bigera kuri 75B icyuma cya silicon, urugero, igiciro rusange kiriho ubu hafi ya 8500-8700 yuan / toni, na mu ntangiriro zuyu mwaka igiciro cyamafaranga 7000 / toni.Igiciro cy'umusaruro w'ibikoresho fatizo cyazamutse cyane, kandi igiciro cy'ifu ya silicon nitride y'icyuma cyahatiwe kuzamuka.

Hamwe n'izamuka ry'ibiciro by'ibikoresho fatizo byinshi, abakora ibikoresho bya diyama mu gihugu bitera ikibazo gikomeye, kandi inganda nyinshi zagombaga kuzamura ibiciro.

Byumvikane ko inganda zitanga umusaruro muri iki gihe mu Bushinwa zihagaze neza, zitangwa bihagije, ariko zikagira ingaruka ku gukumira no kurwanya icyorezo, ibinyabiziga bitwara abantu ni bike, ibiciro by’imizigo nabyo biri hejuru ugereranije n’ibihe byashize, abakiriya bo hasi bagomba kwitegura hakiri kare.

Niba ukeneyediyama, ibiziga bya diyama, gusya inkweto, isahani yo gusyanibindi, ikaze kutwandikira.