Forgingfeem ntau categorized raws li qhov kub ntawm qhov uas nws tau ua - txias, sov, los yog kub forging.Ntau hom hlau tuaj yeem ua forged.Forging yog tam sim no kev lag luam thoob ntiaj teb nrog cov cuab yeej forging niaj hnub tsim cov hlau zoo hauv ntau qhov ntau thiab tsawg, cov duab, cov ntaub ntawv, thiab tiav.Hlau yog rhuab ua ntej nws yog manipulated rau qhov xav tau zoo siv ib tug forging rauj.Qhov no siv tau los ntawm tes los ntawm cov kws ua hlau.