Raws li ib qho ntawm cov kws tshaj lij refractory manufacturers thiab lwm tus neeg nyob hauv Suav teb, peb tau tshwj xeeb los ntawm cov khoom zoo thiab tus nqi qis. Thov so assured mus yuav luv nqi refractory ua nyob rau hauv Suav teb nov los ntawm peb lub hoobkas.
