iav qeb

1. Crystal iav
Crystal khob kuj yog ib khob.Cov khoom xyaw tseem ceeb yog silicon dioxide, tab sis qhia txog cov hmoov lead, cymbal, zinc, titanium thiab lwm yam khoom siv.Vim tias cov iav no muaj qhov pom tseeb siab thiab qhov ntsuas tsis pom kev, nws qhov kev pom sab nraud yog huv si thiab siv lead ua, yog li nws hu ua Crystal iav.Yog hais tias nws yog qhia, nws yog lead crystal.Rau cov khoom xws li kab civliv, zinc, titanium, thiab lwm yam, nws yog siv lead ua siv lead ua.
2. Ob chav txheej iav
Cov ntaub ntawv raw ntawm ob-txheej iav yog siab -borosilica iav, zaub mov -qib catering -qib iav, uas yog raug rho tawm los ntawm ntau tshaj 600 degrees ntawm kub kub.Nws feem ntau yog siab borosilicon iav khob yeeb nkab.Thiab nws yog ib hom tshiab ntawm kev tiv thaiv ib puag ncig tshuaj yej khob, uas yog nce nyiam los ntawm tib neeg.
3. Ordinary iav chaw ua hauj lwm khob
Nws yog hais txog cov iav ua los ntawm iav, uas feem ntau yog ua los ntawm cov khoom siv raw khoom siab borosilized iav, uas raug rho tawm los ntawm ntau tshaj 600 degrees ntawm qhov kub thiab txias.Nws yog hom tshiab ntawm ib puag ncig tus phooj ywg tshuaj yej khob thiab tau dhau los ua neeg nyiam.