Aluminium Railing tempered iav yog 5 hli (1/5 nti), 6 hli (1/4 nti)Xim: ntshiab iav, Bronze iav, Grey iav, Pinhead iav, Etched iavKev soj ntsuam cov qauv: ANSI Z97.1, 16 CFR1201, CAN CGSB 12.1-M90, CE-EN12150