Sarrafa kaya

A cikin shekaru 35 da suka gabata, baƙin ƙarfe da masana'antar ƙarfe ya taɓa ganin canje-canje masu mahimmanci. A cikin 1980 716 Miln 716 na MLN na karfe an samar da shi kuma a ƙasashe masu zuwa daga cikin shugabannin gida (kashi 21%), Jamus (5%), China (5%) ), Italiya (4%), Faransa da Poland (3%), Kanada da Brazil (2%). Dangane da kungiyar kwallon kafa ta duniya (WSA), a cikin 2014 Winternoplone World World Zubai 1665 na duniya - 1% ya tashi a kwatanta da 2013. Jerin kasashen sun canza sosai. Kasar Sin ta fara farko kuma ta yi nisa da sauran kasashe (kashi 60% na samarwa na duniya), rabon wasu kasashe daga saman-10 ne 2-8 - Japan (6%), Kudu da Indiya (6%), South Koriya da Rasha (5%), Jamus (3%), Turkiyya, Brazil da Taiwan (2%) (duba Hoto na 2). Bayan China, wasu ƙasashe waɗanda suka ƙarfafa matsayinsu a cikin manyan-10 sune Indiya, Koriya ta Kudu, Brazil da Turkiyya.

Amfani

Iron a cikin dukkan siffofinsa (sukan jefa ƙarfe, karfe kuma ya birgima ƙarfe) shine kayan gini a cikin tattalin arziƙi na zamani. Yana riƙe da wurin da ke cikin gini a gaban itace, gasa da ciminti da ma'amala da shi (Ferrogencrete), kuma har yanzu yana fafatawa da sabbin kayan aikin gini (polimers, beramics). Shekaru da yawa, masana'antar Injiniyan ta yi amfani da ferrous kayan fiye da kowane masana'antu. Yankunan ƙarfe na duniya ana san shi ne ta hanyar da ke gaba. Matsakaicin ƙimar ci gaban amfani a cikin 2014 ya kasance 3%. Za'a iya ganin ƙaramin haɓaka a cikin ƙasashe masu tasowa (2%). Kasashe masu tasowa suna da babban matakin yawan ml (1,133 mln).