Kev nyab xeeb thiab kev ntseeg siab ntawm steel qhov rooj hluav taws tau lees paub los ntawm ntau tus neeg siv khoom, vim tias cov khoom siv yog cov khoom siv ruaj khov thiab ruaj khov, tsis xeb, tsis xeb, thiab sealing zoo. Lub qhov rooj hluav taws kub ua los ntawm cov hlau zoo thiab cov khoom siv refractory tuaj yeem tsis tsuas yog ua tau raws li qhov yuav tsum tau muaj kev nyab xeeb, tab sis kuj ua kom muaj kev ruaj ntseg ntev ntawm cov neeg siv yam tsis muaj kev puas tsuaj.

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