Nrog muaj zog R & D lub zog thiab muaj peev xwm ntau lawm, ZH Gems tam sim no tau dhau los ua cov chaw tsim khoom thiab cov neeg muag khoom ntseeg siab hauv kev lag luam. Tag nrho peb cov khoom suav nrog xoob gemstone hlaws yog tsim los ntawm kev tswj hwm nruj thiab cov qauv thoob ntiaj teb. xoob gemstone hlaws Peb yuav ua peb qhov zoo tshaj plaws los pab cov neeg siv khoom thoob plaws tag nrho cov txheej txheem los ntawm cov khoom tsim, R & D, mus rau kev xa khoom. Txais tos tiv tauj peb kom paub ntxiv txog peb cov khoom tshiab xoob gemstone hlaws dai lossis peb lub tuam txhab.loose gemstone hlaws yog tsim los ntawm cov khoom siv zoo tshaj. Nws muaj qhov siab hardness thiab zoo corrosion kuj, siab kub tsis kam, thiab hnav tsis kam. Nws tuaj yeem hnav tau ntev yam tsis muaj kev hloov pauv.
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