Txheeb xyuas seb Lub khob Ob chav iav muaj cov hmoov txhuas?

1. Saib qhov toughness ntawm ob - txheej iav: lead- iav dawb yog tawv dua li cov iav siv lead ua lead, uas yog, cuam tshuam tsis kam.

2. Ntsuas qhov hnyav hauv tes: Piv nrog cov hmoov lead- cov khoom siv lead ua dawb dawb, cov hmoov lead- cov khoom siv lead ua iav yog tuab me ntsis.

3. Listening to the sound: In addition to the metallic sound of the leaded crystal glass, the sound of the lead-free glass is more pleasing to the ear and has the reputation of "music" cup.

4. Saib cov xim ntawm lub khob: lead- iav dawb muaj kev ua haujlwm zoo dua li cov iav siv lead ua iav, thiab tuaj yeem ua kom pom qhov zoo ntawm cov iav hlau; xws li qee cov hniav nyiaj hniav kub ntawm cov duab sib txawv, siv lead ua iav iav, iav siv lead ua, thiab lwm yam. Ua los ntawm cov iav txhuas.

5. Saib ntawm kev tiv thaiv tshav kub: iav khob feem ntau tuaj yeem tiv taus qhov kub thiab txias, tab sis feem ntau tsis muaj qhov txias txias thiab kub tsis kam. Lead-dawb siv lead ua iav yog qhov siab -expansion coefficient iav, uas tsis muaj qhov txias txias thiab kub tsis kam. Yog tias koj ntxiv cov dej kub npau npau los ua tshuaj yej hauv cov hmoov lead tshwj xeeb txias - iav dawb, nws yooj yim tawg.

6. Saib lub logo: lead- iav dawb feem ntau muaj cov poov tshuaj, feem ntau yog cov khoom siv tes ua, thiab muaj cov cim qhia ntawm lub ntim sab nrauv; lead-cov iav iav muaj cov hmoov lead, thiab cov iav siv lead ua no muaj ntau heev nyob rau hauv cov khw loj thiab cov khw muag khoom, thiab muaj txog li 24 feem pua ​​​​cov hmoov lead oxide.