Cov txheej txheem ceev rau kev txheeb xyuas cov ntaub ntawv:
Saib xyuas qhov tsos thiab luster:
Cov ntaub ntawv hlau (xws li cov hlau tsis muaj steel, tooj dag): Feem ntau muaj cov xim hlau; stainless hlau yog txias dawb, thaum tooj dag yog sov daj.
Enamel / porcelain cov ntaub ntawv: Cov nplaim yog du, cov xim yog vibrant, thiab nws muaj cov iav zoo nkauj.
Resin/composite cov ntaub ntawv: Cov xim nplua nuj, tab sis cov luster yog cov yas ntau dua -zoo li, thiab lawv yuav hnyav dua.
Nrhiav cov cim thiab cov ntawv cim:
Cov ntaub ntawv hlau: Txheeb xyuas lub nraub qaum lossis cov npoo rau cov cim purity xws li "S / S," "S / S," "S / S," thiab lwm yam.
Enamel / porcelain: Feem ntau tsis muaj cov cim tshwj xeeb hlau, tab sis yuav raug cim nrog cov lus zoo li "Enamel."
Kev sim lub cev yooj yim:
Magnetic test: Siv cov hlau nplaum los ze rau tus pin; stainless hlau feem ntau tsis yog- sib nqus, thaum enamel nrog lub hauv paus hlau yuav muaj zog hlau nplaum.
Qhov hnyav thiab xav tau: cov khoom siv hlau hnyav dua, thaum cov ntaub ntawv resin sib dua.
Saib xyuas cov ntsiab lus craftsmanship:
Hlau: Xyuas seb cov npoo yog du thiab tsis muaj burrs.
Enamel / plooj (porcelain): xyuas seb lub glaze puas yog thiab tsis muaj npuas lossis tawg.
