Insulating glass for building; Insulating glass for construction purposes; Insulating glass for windows for building purposes; Insulated glass; Glass for building; Glass blocks for building; Reinforced glass for building; Foam glass for building; Luminous glass for building; Window glass for building; Tempered glass for building; Decorative glass for building; Alabaster glass for building; Non-metal building materials, namely, Vacuum-insulated glass panels for use in residential and commercia...

Two pieces of glass sealed together with a very thin vacuum between the glass and the glass is separated by very small steel pillars so it does not collapse on each other