Manufar dumama kayan aikin dumama karfe zagaye:

Zagaye karfe dumama kayan aiki ne musamman zagaye karfe pre-forging dumama hanya, zagaye karfe mirgina dumama da zagaye karfe quenching da tempering dumama. Wadannan hanyoyi guda uku sun bambanta bisa ga manufar dumama karfe, kuma zagaye na karfe, yanayin zafi da tsarin dumama suna da bambanci sosai. .