1. Saib lub logo: Lead-free iav feem ntau muaj cov poov tshuaj muaj cov poov tshuaj, feem ntau yog cov khoom siv tes ua siab thiab muaj lub logo rau ntawm cov khoom ntim sab nraud.Lead-containing iav muaj cov hmoov lead, uas yog, cov iav siv lead ua uas muaj nyob hauv qee lub khw muag khoom thiab cov khw muag khoom, cov ntsiab lus ntawm cov hmoov lead oxide tuaj yeem ncav cuag 24%.2. Saib cov xim: Lead-free iav muaj qhov luv nqi zoo dua li cov iav siv lead ua iav, xws li ntau yam duab ntawm ornaments, siv lead ua iav iav, iav siv lead ua, thiab lwm yam. Nws yog ua los ntawm txhuas-containing iav.Raws li cov ntsiab lus ntawm tsab xov xwm, nws yog rau koj 3. Saib cov cua sov ua haujlwm: Cov iav feem ntau tuaj yeem tiv taus qhov kub thiab txias, tab sis feem ntau qhov kev tiv thaiv kub thiab cua sov feem ntau tsis zoo.Lead-free crystal iav yog iav nrog lub siab-expansion coefficient.Nws yog resistant rau qhov tsis kam tshaj qhov kub thiab txias.Yog hais tias nws yog ua los ntawm boiling tshuaj yej nrog boiling dej nyob rau hauv ib tug tshwj xeeb txias-free iav, nws yog feem ntau tawg.4. Kev tsom xam: Cov khoom siv lead ua iav uas muaj cov khoom siv lead ua yog hnyav me ntsis piv rau cov khoom siv lead ua-dawb crystal iav.
Post lub sij hawm: Apr-06-2023