04. Dej iav kua txiv iav

Cov dej qab zib dej, tseem hu ua soda-lime-silica iav, yog hom iav tshaj plaws. Nws yog siv rau windowpanes thiab iav ntim, xws li fwj thiab lub rhawv zeb. Piv txwv, iav bakeware yog feem ntau ua los ntawm tempered soda-txiv qaub iav. Dej qab zib dej qab zib li ntawm 90% ntawm lub khob iav.

Dej iav kua txiv yog qhov zoo tagnrho rau iav ubno vim tias nws tuaj yeem ua peb tus ed thiab kho tau ntau zaus . Nws yog pheej yig , sib txeeb, ua haujlwm nyuaj, thiab tsis tshua muaj haujlwm .

Cov dej qab ntsev yog technically   muab faib ua cov iav thiab thawv iav. Ob hom ntawm tsom iav yog txawv ent   los ntawm   daim ntawv thov, kev tsim ntau yam, thiab cov tshuaj muaj kuab.