... selection. 3.Chambers: 3,4,5,6,,excellent heat-insulating effect and airtightness. 4.Profile thickness:Thickness of main profile ... 5,5+9+5), /triple glazing,LOW-E glass,insulating glass, tempered glass,obscure/frosted glass.Glass thickness range from ... available, such as arc windows, curved windowsGlassFloat Glass, Insulated/insulating/hollow Glass, Tempered/toughened/strenghtened Glass, Low-e Glass, ...