I kēia lāE ʻae'ke kamaʻilio ʻana e pili ana i ka IGU'ʻO ka mea hoʻokaʻawale alumini (ʻaʻole i hoʻokomo ʻia ka mea hoʻokaʻawale mahana IGU).

ʻElua mau mea hoʻokaʻawale alumini like ʻole no ka hoʻokaʻawale ʻana i ke aniani.

ʻO kekahi he kaula alumini pelu pinepine kiʻekiʻe, i kapa ʻia hoʻi he spacer alumini pelu, aia kona mau hiʻohiʻona ma lalo:

1. Anti-rust, anti-corrosion, ʻōlinolino kiʻekiʻe

2. Loaʻa i ka ʻili o ke kaula alumini ke komo ʻana o ka lua like, pololei maikaʻi, ʻaʻohe deformation, a paʻa ka nui.

3. Ikaika kiʻekiʻe a me ka paʻakikī maikaʻi, hiki ke kulou i kekahi kihi e ka mīkini kulou.

4. E hōʻoia i ka hana o ka sieve molekala a hōʻoia i ka hoʻopili maikaʻi loa me nā mea hoʻopaʻa like ʻole

ʻO kekahi he kaula alumini maʻamau, i kapa ʻia hoʻi he spacer alumini i hoʻopololei ʻole ʻia.'ua hoʻopili ʻia e ka mea hoʻohui kihi no ka huinahā a i ʻole ka huinahā wale nō, hiki't kulou i nā kihi hou aku.

ʻO ka nui o ka ʻāpana alumini maʻamau he 4mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 8mm, 8.5mm, 9mm, 10mm, 11mm, 11.5mm, 12mm, 14mm, 14.5mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 25mm, 27mm. ʻO ka mānoanoa ma kahi o 0.25-0.4mm.