Umuyoboro w'icyuma udafite kashe kubitutu bito kandi biciriritse (GB3087-2018. , imiyoboro ntoya yumwotsi hamwe nu matafari yubakishijwe amatafari ya parike.

Impera z'umuyoboro w'icyuma zigomba kuba perpendicular kuri axe y'icyuma, kandi burrs igomba kuvaho.GB3087Umuyoboro usanzwe wibyuma bikozwe mubintu 10, 20 bishyushye cyangwa bikonje bikonje byujuje ubuziranenge bwa karubone yubatswe, mubisanzwe bikenerwaumuvuduko w'amazie, kunyerera, gucana, gusibanganyanibindi bizamini kugirango umenye neza ibicuruzwa nibikorwa.