Umukandara w’inyamaswa uzwiho kuramba kwawo. Urwanya imihindagurikire y’ikirere, imirasire ya UV, n’ubushuhe, bigatuma ukoreshwa mu kubika hanze no mu gihe kirekire. Ibi bituma ibintu bipfunyitse birindwa neza kandi bigakomeza kuba byiza mu gihe cyose cyo kohereza no kubika.

| Ibisobanuro. | GW | Uburebure | Imbaraga zo Gufata | Ibara |
| 1608 | 20kg | Hafi metero 1200 | Hafi 450kg | Icyatsi kibisi cyangwa umukara cyangwa andi mabara |
| 1610 | 20kg | Hafi metero 1100 | Hafi 500kg | |
| 1910 | 20kg | Hafi metero 1000 | Hafi 660kg | |
| 1307 | 20kg | Hafi metero 1600 | Hafi 350kg | |
| 1607 | 20kg | Hafi metero 1250 | Hafi 400kg
|



