Hana ʻia ka mea hoʻoheheʻe refractory paʻa i ka refractory aggregate, refractory pauda.nā mea hoʻopili a me nā mea hoʻohui ʻē aʻe.
Hoʻokumu ʻia ka castable refractory refractory māmā me ka kiʻekiʻe kiʻekiʻe māmā-kaumaha aggregate, pauka, admixture a me ka binder.