Isosiyete yateguye kandi ikora inganda 280 zogosha mu Bushinwa, Ubuholandi, Ositaraliya, Turukiya, Uburusiya, Ubuhinde, Yorodani, Arabiya Sawudite, Afurika y'Epfo, Amerika, Misiri, Siriya, Azerubayijani, Rumaniya, Alubaniya na Pakisitani.
Ubunararibonye bwunganirwa no gukurikirana iterambere mubindi bice byisi - kugirango ubone tekinoroji igezweho kandi igezweho ku isoko. Ubu bumenyi bwatumye ikoranabuhanga ritera gukoresha zinc nkeya, gukoresha ingufu nke, ndetse nubwiza buhebuje.