Tus nqi yog dab tsi refractory cib

Tus nqi ntawm refractory bricks yog txawv raws li raw cov ntaub ntawv, cib duab thiab specification yuav tsum, thiab qhov chaw yuav tsum tau siv rau refractory bricks. Tus nqi kuj txawv heev. Tus nqi ntawm cov av nplaum refractory bricks yog pheej yig. Cov duab feem ntau yog ntau txhiab yuan ib tuj.