... , safe, tempered glass, insulated glass, curtain wall, clear glassBusiness type: factory, manufacturerFunction: commercial building curtain wallStructure: ... use: outside of building window curtain wallGlass Color: Ultra clear, clear, black, grey, tintedGlass Thickness: 4mm, 5mm, 6mm, ... are widely used for building curtain wall and windows as the functions of soundproof and energy conservation ...