Halkan hoose ka akhriso oo ka jawaab su'aasha ku xigta isla luqadaas: Passage: Isticmaalka ugu weyn ee germanium ee 2007, adduunka oo dhan, waxaa lagu qiyaasay: 35% fiber-optics, 30% infrared optics, 15% polymerization catalysts, iyo 15% electronics iyo codsiyada korontada qoraxda.
Fiber optic-ka