Gukata ibikoresho.
Kurugero, ibyuma bizunguruka, ibyuma bifata inguni, ibyuma byinguni, umuyoboro wumuyoboro, umuyoboro wa kare, I-beam, aluminium, umuyoboro wibyuma (mugihe ukata umuyoboro wicyuma, urupapuro rwihariye rudasanzwe rugomba gusimburwa)