Cold aikin mutu karfe ne yafi amfani da stamping, blanking, forming, lankwasawa, sanyi extrusion, sanyi zane, foda metallurgy mutu, da dai sauransu Yana bukatar high taurin, high lalacewa juriya da isasshen tauri. Gabaɗaya an kasu kashi biyu: nau'in gama-gari da nau'i na musamman. Misali,...
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