Muaj ntau hom tuam txhab lossis cov chaw tsim khoom hauv kev lag luam kov qhov rooj:
Thawj qhov yog ua raws li cov qauv tsim ntawm lwm lub tuam txhab lossis cov chaw tsim khoom. Cov khoom ntawm cov tuam txhab lossis cov chaw tsim khoom no tsis muaj cov qauv tsim tshiab thiab muaj peev xwm tsim cov khoom tshiab.
Qhov thib ob yog cov tuam txhab lossis cov chaw tsim khoom uas feem ntau muab cov tes tuav qhov rooj aluminium alloy, cov tes tuav qhov rooj stainless hlau lossis cov tes tuav qhov rooj hlau. Cov khoom no feem ntau suav hais tias yog cov khoom loj, tus nqi yog qhov tseem ceeb, thiab tsis tas yuav tsim khoom thiab tsim kho tshiab.
YALIS, lub chaw tsim khoom rau cov tes tuav qhov rooj zinc alloy thiab cov khoom siv kho vajtse qhov rooj, tsis yog tsuas yog muaj peev xwm tsim khoom rau ntau hom neeg siv khoom thiab cov xwm txheej siv qhov rooj, tab sis kuj muaj peev xwm ua lag luam thiab txhawb nqa hauv ntau lub khw sib txawv.
Qhov thib peb yog hom lag luam Italian ua lag luam. Lawv cov khoom feem ntau yog ua los ntawm tooj dag. Lawv lub npe nrov heev thoob plaws ntiaj teb. Txawm li cas los xij, lawv cov khoom yuav muaj rau cov neeg siv khoom me me --- cov neeg siv khoom kim heev.
