Tarihin ci gaban bututun ƙarfe mara sumul Samar da bututun ƙarfe mara sumul yana da tarihin kusan shekaru 100. 'Yan'uwan Mannesmann na Jamus sun fara ƙirƙiro injin huda bututun mai birgima biyu a shekarar 1885, da kuma injin niƙa bututu na lokaci-lokaci a shekarar 1891. A shekarar 1903,...
Bayanin Samfura Bututun ƙarfe na tukunya muhimmin sashi ne a cikin kayayyakin more rayuwa na zamani na masana'antu, suna taka muhimmiyar rawa a cikin aikace-aikace iri-iri, tun daga samar da wutar lantarki zuwa ayyukan masana'antu. An tsara waɗannan bututun ne don su dawwama...