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INSULATING GLASS UNIT (IGU,DGU) is popular in Curtain Wall, Door & Windows, especially the one with Low E glass or other energy efficiency glass because of its energy saving,Environmental protection and Sound Acoustic performances. More and more governments in the world stipulate that the developer or builder is mandatory to use IGU,especially energy -efficient IGU as window glass in residential buildings for environmental-protection. IGU/DGU is made of two sheets of glass or more or combined glass, such as laminated glass with spacer. Neo IGU can be combined by Annealed Glass,Tempered Glass,Laminated Glass. Float Glass, Low E, or other Performance Glass are also the choices.Air or inert gas, such as argon is alternative to increase the glass performance. Besides the property of energy-efficient, acoustic sound is its another characteristics, especially it is with inert glass, or laminated glass with acoustic PVB.
