Qhov tsis sib luag tuab ntawm lub khob poob iav twj tso kua mis lub raj mis tuaj yeem yooj yim ua rau kev puas tsuaj lossis raug nyem los ntawm cov ntsiab lus nyob rau hauv qhov mob khaub thuas txias.Qhov tsim nyog yuav tsum tau kuaj thaum lub sij hawm txhaws. Nws yuav tsum tau nruab nrog lub thawv xim, thiab lub phaj sab hauv thiab lub npov nruab nrab tuaj yeem tau txais cov khoom coj los tiv thaiv kev co.
Vim tias cov tshuaj lom neeg zoo ntawm cov iav fwj tshuaj pleev ib ce, nws tsis yooj yim rau cov tshuaj tiv thaiv nrog cov ntsiab lus; zoo pob tshab, koj tuaj yeem ntxiv cov xim xws li hlau, cobalt, chromium thiab lwm yam ntaub ntawv los tsim ntau yam iav dropper twj tso kua mis (xws li iav amber, ntsuab (iav, cyan iav, cobalt xiav iav, opal iav, opalescent iav) ; zoo tshav kub tsis kam thiab tsis yooj yim rau deform; siab compressive zog, tiv taus lub zog sab hauv; siab ceev thiab qhov hnyav (haum rau qib siab ntim khoom ntim); thaiv qhov yooj yim foob, thiab tuaj yeem rov ntim tom qab qhib. Yog li ntawd, cov tshuaj pleev ib ce iav fwj feem ntau siv rau kev ntim cov tshuaj pleev ib ce qib siab lossis cov tshuaj pleev ib ce nrog kev ua tshwj xeeb.
