Hangzhou Tengtu Radiant Glass Co. Ltd muaj cov kws tshaj lij kev tsim khoom ntawm txhua yam iav haus luam yeeb khoom.
Tsim los ntawm 2008, txog tam sim no, peb muaj 12 xyoo kev paub.
Tag nrho peb cov khoom yog xuas tes ua tshuab nrog borosilicate iav thiab 100% quartz iav.