Cold ọrụ anwụ ígwè na-tumadi ji stamping, blanking, akpụ, ekwe, oyi extrusion, oyi ịbịaru, ntụ ntụ metallurgy anwụ, wdg Ọ na-achọ elu ekweghị ekwe, elu eyi na-eguzogide na zuru ezu toughness. A na-ekekarị ya ụzọ abụọ: ụdị izugbe na ụdị pụrụ iche. Dịka ọmụmaatụ, ndị ...
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