In other words, the real is "empty" Shandong hollow glass curtain if you buy back within insulating glass sandwich, it will undoubtedly explain the thermal insulation at cold performance or, at best, double glazing, thermal insulation effectiveness inevitable difference Shandong hollow glass curtain, scientific testing proved qualified hollow glass, can generally limit window heat transfer coefficient k value of 3.5 down to 2.8 from the original hollow glass curtain, Shandong decrease heat transfer performance can make the room heat is not easily lost . Hollow glass market counterfeit, usually just the two pieces of glass held together simply, its thermal performance is undoubtedly very poor. IG transfer energy in three ways: the radiative transfer, convection and conduction transfer transfer. Radiative transfer radiation energy transfer is by passing rays in the form of radiation, this radiation including visible light, infrared and ultraviolet radiation, the same as the sun's rays pass. The rational allocation of hollow glass and sound insulating glass spacer layer thickness, can maximize the reduction of energy by radiation in the form of transfer, thereby reducing energy losses. Hollow glass windows, Zibo hollow glass, Yaohui quality assurance is provided by Jinan Glass Co., Ltd. Yaohui. Jinan Yaohui Glass Co., Ltd. (www.jyhhc.com/) strong, credible, in Jinan, Shandong architectural glass industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jinan Yaohui into the brilliant glass and you work for a better future!