Uyu mukiriya ni enduser ugura ibicuruzwa bya tungsten karbide mumyaka itanu ishize.

Nyuma yo kugerageza inshuro ebyiri ibicuruzwa byacu bya tungsten. Mu mpeshyi ishize, batumije byinshi.

Baje kugenzura ibicuruzwa byabo mbere yo koherezwa.

Banyuzwe na byose.

Muri uku kwezi kwa Gashyantare, baduhaye irindi teka rikomeye.