N'afọ 2007, a na-eji germanium eme ihe n'ụwa niile: 35% maka fiber-optics, 30% infrared optics, 15% polymerization catalysts, na 15% electronics and solar electric applications. Ihe fọdụrụ 5% gara n'ime ihe ndị dị ka phosphors, metallurgy, na chemotherapy. Ajụjụ: 35% nke germanium eji na 2007 gara na ihe?
eriri optic