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Birta birta ah ee qabow ee jiingadda leh ee birta ah ee birta kulul ee la duubay birta 3-250mm
Birta labajibbaaran waa nooc ka mid ah walxo leh qaabab kala duwan, cabbirro iyo sifooyin ka samaysan ingot, billet ama biraha cadaadis ka shaqaynta. Waxaa loo qaybin karaa rogid kulul iyo rogaal qabow; Dhererka dhinac ee birta kulul ee duuban ee duuban waa 5-250mm, iyo tan birta labajibbaaran ee qabow waa 3-100mm.