use of laminated glass...as three glass plies and two plastic interlayers. At least one of the inner glass plies is strengthened by ion exchange (see above) in order to withstand the impact of flying objects such as birds. Bulletproof glass is often laminated, although a single ply of dead-annealed glass as thick as 20 to 25 millimetres is used in some applications. The reason for having dead-annealed glass is the...
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