Imiyoboro ikoreshwa: Umuringa, Aluminium, Nylon. Umuringa wo Kwinjiza Umuringa: 1. Komeza umuyoboro wumuringa iburyo kumurongo hanyuma ukagera hepfo, utondekanye kuri kabe ya peteroli. Umva gukoporora hepfo hanyuma ukana buhoro buhoro. Nyuma yo guhuza, kashe irahinduwe niterambere, kugabanuka, gufunga umuyoboro wumuringa urashobora.
