Rebar izita rakajairika kune inopisa-yakakungurutswa ribbed simbi simbi.Iyo giredhi yeyakajairwa inopisa-yakatenderedzwa simbi bar ine HRB uye yakaderera goho poindi yegiredhi.H, R, uye B ndiwo mabhii ekutanga emashoko matatu, Hotrolled, Ribbed, and Bars, zvichiteerana....
Verenga zvimwe