Nubwo byombi ari "C" - byashizweho, umusaraba wabo - ibisobanuro birambuye hamwe nimbaraga zubatswe biratandukanye cyane, bigira ingaruka kumitwaro yabo - ifite ubushobozi hamwe nibisabwa.

Umusaraba - igice cya C Umuyoboro ni aashyushye - izengurutse imiterere. Urubuga rwarwo (igice gihagaritse cya "C") ni muremure (mubisanzwe 6mm - 16mm), naho flanges (impande zombi zitambitse) ni ngari kandi ifite ahantu hahanamye (kugirango byoroherezwe gutunganya - kuzunguruka). Igishushanyo gikora umusaraba - igice gifite imbaraga zikomeye zo kunama no gukomera kwa torsional. Kurugero, Umuyoboro wa 10 # C (ufite uburebure bwa 100mm) ufite uburebure bwurubuga rwa 5.3mm nubugari bwa flange ya 48mm, ushobora kwihanganira byoroshye uburemere bwamagorofa cyangwa inkuta muburyo bukuru.

C Ku rundi ruhande, ikorwa no gukonjesha gukonje kw'ibyuma bito. Umusaraba wacyo - igice ni "slim": uburebure bwurubuga ni 1.5mm - 4mm gusa, kandi flanges iragufi kandi akenshi ifite uduce duto (bita "imbavu zishimangira") kumpera. Urubavu rukomeza rwashizweho kugirango rutezimbere aho uhagaze neza kandi wirinde guhinduka munsi yimitwaro mito. Ariko, kubera ibintu byoroshye, muri rusange kurwanya torsional ya C Purlin birakomeye. Kurugero, C160 × 60 × 20 × 2.5 C Purlin (uburebure × flange ubugari × uburebure bwurubuga × uburebure) ifite uburemere bwuzuye bwa 5.5 kg gusa kuri metero, ikaba yoroshye cyane kuruta Umuyoboro wa 10 # C (hafi 12,7 kg kuri metero).