Urupapuro rwicyayi rwungurura rwicyayi rushyirwa mubikorwa byo gupakira igikapu. Muri icyo gihe, impapuro ziyungurura umufuka wicyayi zizafungwa mugihe ubushyuhe bwimashini ipakira burenze dogere selisiyusi 135.
Uburemere bwibanzeimpapuro zo kuyungurura ni 16.5gsm, 17gsm, 18gsm, 18.5g, 19gsm, 21gsm, 22gsm, 24gsm, 26gsm,ubugari rusangeni 115mm, 125mm, 132mm na 490mm.ubugari buninini 1250mm, ubwoko bwubugari bwose bushobora gutangwa ukurikije ibyo umukiriya asabwa.