Karfe Cuppe shine samfurin na tattalin arziki wanda ke akwai a cikin manyan maki, bayanai, ƙayyadaddun bayanai, da kuma buƙatun wasan. Za'a iya amfani da bututu na karfe don jigilar ruwa da daskararrun daskararru, musanya zafi, da kuma samarwa kayan inji da kwantena da kwantena da kwantena da kwantena da kwantena. Using steel pipe to manufacture structural grids, supports, and mechanical supports can reduce weight, saving 20-40% of metal and enabling factory-based, mechanized construction. Yin amfani da bututun ƙarfe a cikin Babban Gidara Bridge Ba kawai ya ceci ƙarfe da sauƙaƙe rage yankin da aka kiyaye shi ba, farashin saka hannun jari.