Corundum refractory castables na-eji calcined bauxite dị ka mkpokọta, yana matriks nke nwere calcined bauxite na ezigbo corundum ntụ ntụ; A na-emepụta usoro ihe nchikota site na iji ihe ndị mejupụtara dị ka ultrafine powders na additives. A na-eji ya eme ihe maka mkpuchi ọkụ nke ụlọ ọrụ mmepụta ihe -gụnyere ihe ọkụ ọkụ, ọkụ ọkụ na-ekpo ọkụ{2}ọkụ ọkụ, na ọkụ ọkụ ọkụ{3} ihe a na-enye ezigbo nguzogide mgbanwe okpomọkụ ngwa ngwa, okpomọkụ dị elu, na ujo ọkụ.
Mgbakwunye okpomọkụ{0}} eriri igwe anaghị agba nchara na-eguzogide nke ọma na-eme ka ike n'ozuzu ya dịkwuo elu ma na-egbochi imebi mgbidi ọkụ. Dabere n'ihe a chọrọ ka ụlọ ọrụ mmepụta ihe, ihe a dị n'ụdị dị iche iche, dị ka chrome{2}}corundum na zirconia-corundum. Mmepụta gụnyere nyocha kemịkalụ siri ike nke akụrụngwa na nnwale anụ ahụ; A na-akwado oke ngwakọta site na nnwale, yana ngwaahịa emechara na-anwale ule arụmọrụ maka oke dị ka ike mgbanwe na njupụta buru ibu.