Ubuchwephesha obuqhubekayo be-extrusion yinguqu kumgca we-non-ferrous metal processing, isetyenziselwa uluhlu olubanzi lobhedu, i-aluminium okanye i-alloy rod extrusion yobhedu ukwenza ngokukodwa iintlobo zeflethi, ezijikelezayo, ibha yebhasi, kunye nabaqhubi beprofayili, njl.