Lub tes yog zoo li "pob npab".Raws li ib qho ntawm cov khoom siv tseem ceeb hauv lub txee, cov ntaub ntawv tseem ceeb ntawm lub txee kov ntawm kev ua lag luam yog tooj liab, ceramic, zinc alloy, stainless hlau, marble, muaj yas, aluminium alloy, thiab lwm yam. Feem ntau, tuav nrog cov khoom zoo thiab cov qauv zoo. tsis yog tsuas yog siv tau yooj yim, tab sis kuj tseem ua haujlwm ua tiav kov.Cov leeg no muaj cov teebmeem zoo nkauj zoo nkauj thiab ua haujlwm zoo.