Gateswararrun tsofaffin ƙofofin ƙarfe da kullun suna da alaƙa mai rikitarwa, bayanan sirri, kuma ɗaukar launuka na gargajiya. Daga cikin su, ƙwararren kayan gargajiya na Turai shine mafi rikitarwa, kuma alamu sun fi ƙaƙƙarfa, adon gaske.

   Bayanan martaba na ƙofar ƙarfe na zamani zai zama bututu mai fitila mai fitila, wanda yafi nuna sauƙi, amma babu rashin kyau na zamani. Yankin aikace-aikacen: ƙofofin ƙarfe don wuraren zama, ƙofofin ƙarfe don Villas, ƙofofin ƙarfe don makarantu, da ƙofofin ƙarfe don masana'antu ƙofofin da sauransu.

   Babban hanyar ƙofar baƙin ƙarfe ita ce amfani da bututu mai faɗin murabba'i mai fiɗa kamar ƙofar, sannan amfani da kayan ƙarfe don fashewa da inlay kai tsaye a cikin firam. Ayyukan wannan ƙofa na ƙarfe na fili sun fi kyau da kyau don bayyanar, kuma adadin kayan da aka yi amfani da shi ya fi kaɗan, ya dace da ƙofofin girma, kamar ƙofofin al'umma, ƙofofin lambun villa, da dai sauransu.

Babban hanyar babbar nau'ikan ganye mai ganye wacce aka yi ƙofar ƙarfe ita ce amfani da bututun gefe ɗaya azaman ƙofar, sannan kuma amfani da farantin ƙarfe a matsayin ƙasan don yin ƙofar gaba ɗaya, sannan kuma amfani da kayan haɓaka baƙin ƙarfe don fashewa da jefa baƙin ƙarfe farantin da firam. Ayyukan wannan ƙofa mai ƙarfi yana ɗaukar aiki da aminci, amma adadin kayan aikin da aka yi amfani da su sun fi yawa, kuma ba shi da kwarin gwiwa sosai dangane da yanayin ɗoraɗɗun. Ya fi dacewa da ƙananan ƙofofi masu ƙaranci, kamar ƙofofin ƙananan ƙofofin masu zaman kansu.