ICESUN Tempered Vacuum Insulating Glass is ultra-thin because it is constructed of two pieces of tempered glass with a narrow gap supported by metal pillars. It has higher resistance to deformation under external force, which doubles the wind pressure resistance and anti-shock effect compared with common vacuum glass and tempered Low-E argon insulating glass. http://icesunglass.com/en/ ICESUN Tempered vacuum glass has the obvious advantages: Sound insulation performance; Heat resistance; Thermal insulation; Sun proof function; Anti-condensation function; Low-e anti-radiation function; Long lifespan up to 50years; Wind resistance; Photochromic glass; Fireproof and bulletproof performance; Unique vacuum eye technology; Unique low temperature welding technology