ʻO ke kūpale kūpale kūpona kiʻekiʻe

ʻO ka pōpō Refractory me ka papa laumania, kūpaʻa ʻaʻa, ʻaʻa pale, ikaika kiʻekiʻe, conductivity mehana a me ka hiki waiwela, maikaʻi maikaʻi wela, kūpaʻa pumehana maikaʻi a me ka hoʻololi ʻana o ka mahana mālama maʻalahi ʻaʻole maʻalahi e haki, a me nā mea ʻē aʻe i hoʻohana pinepine ʻia i ka hoʻololi hoʻololi a me ka hoʻoponopono i mea kanu amonia. He nui nā pōmaikaʻi o ka pōpō Refractory, e like me:
Ka ikaika kiʻekiʻe, wā hoʻohana lōʻihi.
ʻO ke kūpaʻa o ke kinikona, ʻaʻole ia e pane me nā mea.
Hana maikaʻi o ke kūpaʻa kiʻekiʻe kūpale, ke kūpaʻa kiʻekiʻe kūpale a hiki i ka 1900 ℃.