Monga mtundu wa zinthu zotayidwa, zotayidwa billet angagwiritsidwe ntchito ngati zopangira za zotayidwa extrusion kapena forging.
Njira yopanga aluminiyamu billet imaphatikizapo kusungunuka, kuyeretsedwa, kuchotsa zonyansa, kuchotsa gasi, kuchotsa slag, ndi zina zotero.