Tempered glass
Glass heat-treated to introduce compressive surface stresses and tensile core stresses, producing a material four to five times stronger than annealed glass that fractures into small cuboid dice rather than large sharp shards.
Glass heat-treated to introduce compressive surface stresses and tensile core stresses, producing a material four to five times stronger than annealed glass that fractures into small cuboid dice rather than large sharp shards.
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