Foam glass is a finely ground glass powder as the main rawmaterials, by adding a foaming agent after melt foaming andannealing cooling processing handling, manufactured with uniformindependent aperture closing(opening) air gap structure of newinorganic materials. Since these new materials have moisture-proof,fire-proof, and anticorrosion functions, Combined with the glassmaterials with long-term use without deterioration ofcharacteristics, and used in such harsh environments as thermalinsulation, deep cooling, underground, open air, flammability,humidity, chemical corrosion and etc. so the users are greatlyfavored with it.