Lub qhov rooj hluav taws steel yog ua los ntawm cov khoom siv hlau los ua lub qhov rooj ncej, qhov rooj nplooj ncej thiab vaj huam sib luag. Sab hauv yog ntim nrog cov tsis muaj tshuaj lom thiab tsis muaj teeb meem hluav taws thiab cov khoom siv hluav taws xob. Kev lag luam kho vajtse yog stainless hlau, uas muaj qee yam hluav taws kub. Kev siv lub qhov rooj steel hlau mus ntev yuav tsis ua rau muaj teeb meem zoo vim yog qhib thiab kaw.

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