Izinto zokubumba ziyi-carbon steel kunye ne-alloy steel, ilandelwa yi-aluminium, i-magnesium, ithusi, i-titanium kunye ne-alloys yazo. Imeko yokuqala yezinto eziphathekayo yibha, ingot, umgubo wesinyithi kunye nentsimbi engamanzi. Umlinganiselo wendawo ye-cross-sectional yentsimbi ngaphambi nangemva kokuguqulwa kokuguqulwa kukufowuna ...
Funda ngokugqithisileyo