Nidaamka korontada:kala duwan ee fursadaha awoodda
Tilmaamaha badeecada: Ku habboon kor u qaadista marmarka, dhejinta lebenka refractory, goynta dhagaxa dhagaxa iyo wax ka qabashada, wax-ka-qabashada wax-soo-saarka, tuubooyinka sibidhka, iwm.; Marka loo eego shuruudaha nidaamka macaamiisha kala duwan, qalabka waxaa loo rogi karaa 0 ~ 90 °, 0 ~ 360 ° wareeg ah iyo hawlo kale; loogu talagalay qallafsan, oogada dhagaxa aan sinnayn, waxaad dooran kartaa koobka nuugista isbuunyada gaarka ah ee iswaafajinta.