Tsev > Txuj ci > Ntsiab lus

Yog qhov uas tus siv lead ua

May 30, 2016

Siv lead ua, uas muaj cov tsis muaj kob uas pob tshab iav, feem ntau hu ua K9 clear, (zoo tib yam iav yuav xiavlus thiaj), xws li siv lead ua tej ore. Vim li no, thiaj li yuav paub qhov txawv xwb. Pratices nyob thoob ntiaj teb, siv Rockcrystal qhia ntuj siv lead ua (kuj raug teev hais cai sib ntaus, siv lead ua pob zeb). Siv lead ua, gorgeous thiab voluptuous vaj, nws cov neeg uas tau muaj pheej nyob lawm li noble. Lub sourc ntawm tus siv lead ua, cov siv lead ua los yog tus nqi tam sim, cov keeb kwm pheej yog txoj kev, txoj kev zoo nkauj ntawm nws yog kev lom zem saib. 1676 Englishman George Ravenscroft sab siv lead ua. Siv lead ua, no kuj yog ib yam khoom uas sab ntsuj plig.


Dag siv lead ua, los yog khoom cua siv lead ua (melting siv lead ua): cov khoom raw quartz xuab zeb refined mus txog hauv tus ruam, ntxiv rau lub caij hlau (xws li cov hlau lead) yuav txhim khu lub refraction ci, thiab ces tus mos tej tshuab thiab flawless burnish kung fu yog ua los ntawm siv lead ua ntshiab thiab pob tshab, tuaj ua ntxiv rau tus tsis muaj siv lead ua ntuj. Vim siv lead ua neeg tsim kev nyuab, txoj kev sai los ntawm cov khoom uas, tej, ntxhib sib tsoo, fine sib tsoo, sib tsoo, polishing, soj ntsuam, lettering, los ua ke, tu, ntim, etc. Ntau tshaj 10 cov txheej txheem. Txhua qhov txuas yog nrag ca.