1.Wandika 321 ikiraro cyicyuma gifite ubugari busobanutse bwa 990, uburebure bwa metero 3, nuburebure bwa mm 105;
2.Icyumba cyubwoko bwicyuma 200 gifite ubugari busobanutse bwa 1050 n'uburebure bwa metero 3.048.Kuberako igorofa yubwoko 200 yikiraro isaba ubushobozi bwo kwikorera imitwaro iremereye, uburebure bugera kuri 140mm, burenze hejuru yubwoko bwa 321.
Gusya ibyuma kubiraro byikiraro, Igipfundikizo Cyimyenda Ikomeye gikoreshwa kumuhanda, inzira nyabagendwa, mu gikari nibindi;ikoreshwa nkigifuniko cyumuyoboro wamazi, umwobo winsinga, metero, nu rwobo rwo mu kirere, kurangiza-dip-galvanizing birangira bikoreshwa nka antiseptic.Gupfundikira umwobo ugizwe nikintu cyagenwe & kwimuka.Irashobora gushyirwa mubwoko bwa T, U na M ukurikije imiterere.
1.Uburemere bworoshye capacity ubushobozi bukomeye bwo kwikorera imitwaro
2.bikomeye kandi biramba
3. byoroshye gusukura
4.ubukungu-bukungu
5. isura nziza.
6. byoroshye gushiraho
Gusya ibyuma bikoreshwa cyane ninganda zitandukanye nka: ingufu zamashanyarazi, peteroli, inganda zikora imiti, inganda zikora metallurgie, inganda zimashini, kubaka ubwato, icyambu, ubwubatsi bw’inyanja, kubaka, uruganda rukora impapuro, uruganda rwa sima, ubuvuzi, kuzunguruka no kuboha, uruganda rwibiryo, ubwikorezi, komini, ubuyobozi, parikingi nibindi.
gusya ibyuma birashobora gukoreshwa kuri platifomu, hasi, inzira nyabagendwa, gukandagira ingazi, trestle, kuzitira, gutemba, gutwikira umwobo, gutwikira umwobo, igisenge cyahagaritswe, guhumeka n'umucyo binyuze mubikoresho, nibindi.