Hoʻokumu ʻia nā pahu alumini e ke kaʻina extrusion wela, a ma o ke ʻano o ka mālama wela e hoʻokō ai i ka huhū a me ka hana.
E like me ke ʻano, hiki ke hoʻokaʻawale ʻia nā pahu alumini i nā kaola pōʻai, nā pahu square, nā pā hexagonal, nā pā pālahalaha, etc.
Hāʻawi ʻo Fujian Xiangxin i nā pahu alumini maʻamau a maʻamau o nā ʻāpana like ʻole a me ka huhū.