Icyuma cyo guhinga, umutwe w'isuka, icyuma gizunguruka, icyuma cya DISC

Ibicuruzwa byose bikozwe mu cyuma cya boron cyiza cyane, nyuma yo gucukura no gutunganya ubushyuhe, kugira ngo bigenzure ko ibicuruzwa bifite ubukana buhagije kandi bidashobora kwangirika. Ibicuruzwa byoherezwa mu Burusiya, Lituwaniya, Esipanye n'ibindi bihugu, nyuma y'ibizamini byinshi ku isoko byakozwe n'abakiriya, imikorere yabyo ni myiza cyane.