... Competitive price, 4.Prompt deliver, 5.CCC qualified. tempered glass 1,Tempered glass meet the standard of GB 15763.2--2005.our ... 40mm. 3,Hardness: 4 times harder than ordinary float glass. 4,Outstanding performance in resisting thermal stress and wind-load ... etc certificate CCCChina National Center for Quality Supervision & Test of Glass application1. traffic vehicles,such as the windows of train,bus ...