Wannan nau'in kayan aikin sake amfani da karfe yana da fa'idan aikace-aikace don danna kowane nau'in sharar ƙarfe da sauran ƙaƙƙarfan sharar gida tare da cylindrical, rectangular. ,cube, hexagonal, da sauran nau'ikan prism masu yawa.
Its na'ura mai aiki da karfin ruwa matsa lamba za a iya gyara bisa ga ainihin baling bukatun na wani nau'i na kayan.kamar yatsa karfe, sharar gida karfe, karfe shavings, aluminum, jan karfe, tsari karfe bargo, shavings, kwakwalwan kwamfuta, datti karfe, aluminum, bakin karfe, Motoci masu juzu'i, buckets na gwangwani, gwangwani, tarkacen ƙarfe, tarkacen karfe, zanen ƙarfe, kekuna masu amfani