Glass block is made by glass sand, soda ash, quartz powder & other silicate which melted in high temperature. It has no poison, no pollution, no peculiar smell, and takes no encroachment to human's body. It is green environmental protected production in reality as well as in name. Glass block is a new building decorated production. It has characteristic of pervious to light but untransparent, sound insulation, high thermal resistance, low conduction of heat, high intensity, able to endure corrosion, heat preservation, moist insulation, etc. The designs are beautiful & luxurious. It is easy & convenient to built & widely used on wall decorated in the room or outside.