... e glass,Toughened glass,Insulated glass,and so on.( insulating double glass;(6*12A*6mm,5*9A ... 4.Size:Customized;5.Hareware: High quality made in China or original from Germany;6.Multiple functions ... anti-aging,anti-rust,sound insulation,corrosion-resistance;7.Environmentally friendly,Energy efficiency,Thermal insulation,good ... steel:1.2mm,1.5mm,2.0mm,so on;10.Acoustical insulation:31dB;11.K-value ...