It is made of two (or three) pieces of glass, the use of high strength and high air tightness composite binder, the glass sheet and the aluminum alloy frame containing the desiccant bond, made of high efficiency sound insulation glass. Insulating glass has a variety of properties superior to ordinary double glass, so it has been recognized by countries around the world, insulating glass is two or more pieces of glass to effectively support evenly separated and sealed around, so that there is a dry gas space between the glass layers of glass products. Its main materials are glass, warm edge spacer, Angle peg, butyl rubber, polysulfide glue, desiccant.