Abubuwan da aka bayar na Karfe Gritana yin ta ne ta hanyar murƙushe jabun ƙarfe mai ɗaukar nauyi.An fara haɓakawa kuma an yi amfani da shi don masana'antar shinge na dutse kuma a yanzu kuma an yarda da shi sosai don aikin fashewar saboda yawan aiki.