Bututun ƙarfe marasa shinge da aka yi da sanyi galibi suna da ƙaramin diamita, kuma bututun ƙarfe marasa shinge da aka yi da zafi galibi suna da babban diamita. Daidaiton bututun ƙarfe marasa shinge da aka yi da sanyi ya fi na bututun ƙarfe marasa shinge da zafi, kuma farashin ya fi na bututun ƙarfe marasa shinge da zafi.
Ana raba bututun ƙarfe marasa sumul zuwa bututun ƙarfe masu zafi (wanda aka fitar) marasa sumul da bututun ƙarfe masu sanyi (wanda aka naɗe) marasa sumul saboda hanyoyin kera su daban-daban. Ana raba bututun ƙarfe masu sanyi (wanda aka naɗe) zuwa bututu masu zagaye da bututu masu siffofi na musamman.
Lokacin Saƙo: Janairu-21-2022