1. Imashini ifunitse ni izina risanzwe rikoreshwa mukubaka imishinga yubwubatsi, byerekana ko diameter yumurongo wibyuma utarenze milimetero icumi;
2. Kuberako ibyuma byibyuma biri munsi ya milimetero icumi byoroshye kugorama, kugirango bigabanye uburebure mbere yubwikorezi, uwabikoze azunguza ibyuma birebire byuma muruziga, naho ibyuma byitwa uruziga rukomatanyirijwe ahubatswe;
3. Gukoreshwa cyane mubwubatsi bwububatsi nkamazu, ibiraro, imihanda, nibindi.
4.Icyuma cya coil yamashanyarazi yo kubaka
Icyuma cyo kubaka, nkuko izina ribigaragaza, ni rebar ihujwe hamwe nkumugozi. Mubisanzwe, ibyuma byinshi kumasoko ni 6.5-8.0-10-12-14. Mubisanzwe, mugihe cyo kubyara, ibishishwa byapimwe bipimwa, cyane cyane ko ibishishwa bifatanye kandi ntibishobora kugenzurwa. Muri icyo gihe, ku isoko ryibyuma byumunsi, hariho ibyiciro bitatu gusa byinshyi.