Nta
1 Kev ua haujlwm siab optic.Tsis muaj npib tsib xee nyob rau hauv iav, nws pom lub teeb xa tawm tuaj yeem ncav cuag 92%, qhov ua tau zoo ntawm optic ua kom pom kev zoo meej yam tsis muaj kev cuam tshuam.
2 Superior tshuaj stability.Nobler hluav taws kub resistant iav muaj huab cua tsis zoo, nws yog acid resistant thiab alkali resistant.
3 Cov hluav taws kub resistant zoo heev.Lub softening point yog siab heev, nws yog siab tshaj 843 ℃, tswj nws cov kev ncaj ncees nyob rau hauv qhov hluav taws kub nyob ib ncig ntawm 120 feeb, tiv thaiv tib neeg kev ruaj ntseg zoo.
4 Qhov hnyav qis dua.Nobler hluav taws kub ntsuas iav yog nyob ib ncig ntawm 10% qis dua iav ib txwm ntawm qhov hnyav, tab sis nrog lub zog zoo tshaj plaws.Qhov no txo lub tsev hnyav heev.
5 Ib puag ncig-phooj ywg.Cov khoom siv raw thiab cov txheej txheem tsim khoom los tsim cov iav tiv thaiv hluav taws yog kev tiv thaiv ib puag ncig, tsis muaj teeb meem rau peb lub neej.
6 Yooj yim rau kev sib sib zog nqus.Nws tuaj yeem txiav, drilled, polished npoo, coated zaj duab xis, laminated, tempered thiab lwm yam.