Insulating  glass  is  thermal-proof, soundproof,nice-looking and practical. It is a new construction material that is made by two or three pieces of glass which are pasted by high strength and high air tightness compounds glue between  the  glass  pane  and  al-alloy  frame containing drying agent which can reduce the self-weight of the building. It is highly thermal Proof  with  various  better  performances  than normal  double  layers  glass  so  that  to  be recognized worldwide.