Polycrystalline fibre ifite ubwinshi buke, ubushyuhe buke bwumuriro, guhangana nubushyuhe bwiza bwumuriro, temp ikora cyane, imiterere myiza yimiti, imiti irwanya ruswa nibindi byiza, ikoreshwa cyane mubyuma, ubwubatsi, ububumbyi, ikirere, igisirikare nibindi nganda.