ʻO ka alumina puʻupuʻu puʻupuʻu alumina/ ʻO ka alumina bubble brick kahi huahana alumina māmā i hana ʻia me ka alumina ʻoihana ma ke ʻano hehee.Hiki ke hoʻohana ʻia nā pōhaku lepo hollow refractory māmā e like me nā linings i loko o nā umu wela kiʻekiʻe e pili pono ana me nā lapalapa.
ʻO kā mākoupaʻi pāanā kīʻahaLoaʻa nā mea maikaʻi o ka maʻiʻo alumina kiʻekiʻe, ka haʻahaʻa haʻahaʻa haʻahaʻa, ke kūpaʻa wela kiʻekiʻe, ke kūpaʻa haʻalulu maikaʻi a me ka coefficient hoʻonui haʻahaʻa.