A na-eme ihe nkedo refractory siri ike na-agaghị eyi nke ukwuu site na nchịkọta refractory, ntụ ntụ ntụ.binders na ihe mgbakwunye ndị ọzọ.
A na-emepụta castable mkpuchi refractory dị arọ nke nwere mkpokọta dị oke ọkụ, ntụ ntụ, mkpirisi na ihe nkedo.